Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
🚌 SSC, Railway, Police
Time, Speed and Distance — formula, example and practice
Unit conversion first, then average speed and relative speed.
Content type: original worked example. Not labelled as a previous-year question.
Timed GK/quant mock Shortcuts CBSE Class 10 Maths 150 questions
Formula
Distance = Speed × Time · Average speed = total distance / total time
Three quantities, one equation. Units must match (km/h with hours, m/s with seconds).
What you should learn here
Train questions are TSD plus length: distance = train length (+ platform).
Worked example
Question. Convert 72 km/h to m/s.
Solution. 72 × (5/18) = 20 m/s. Reverse: m/s × 18/5 = km/h.
Common mistake. Averaging two speeds for a two-way trip as (u+v)/2. The correct average is 2uv/(u+v) when distances are equal.
When to use the shortcut. Convert units in the first line of working. Relative speed: same direction subtract, opposite add.
Related chapters and tests
Pipes and Cisterns Boats and Streams Percentage Ratio and Proportion All formulas SSC GD mocks SSC CGL mocks
150 important Time, Speed and Distance questions
Original arithmetic practice for this page. Not labelled as previous-year SSC/railway items. Tap an option to mark it. Open “Answer” for the working.
Score: 0 / 0
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: B
18 m/s × 18/5 = 64.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: B
15 m/s × 18/5 = 54.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: D
40 m/s × 18/5 = 144.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: A
12 m/s × 18/5 = 43.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: B
10 m/s × 18/5 = 36.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: C
24 m/s × 18/5 = 86.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: C
22 m/s × 18/5 = 79.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: B
20 m/s × 18/5 = 72.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: D
17 m/s × 18/5 = 61.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: C
15 m/s × 18/5 = 54.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: C
12 m/s × 18/5 = 43.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: D
30 m/s × 18/5 = 108.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: C
30 m/s × 18/5 = 108.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: D
8 m/s × 18/5 = 28.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: B
20 m/s × 18/5 = 72.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: B
18 m/s × 18/5 = 64.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: B
15 m/s × 18/5 = 54.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: D
40 m/s × 18/5 = 144.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: A
12 m/s × 18/5 = 43.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: B
10 m/s × 18/5 = 36.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: C
24 m/s × 18/5 = 86.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: C
22 m/s × 18/5 = 79.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: B
20 m/s × 18/5 = 72.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: D
17 m/s × 18/5 = 61.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: C
15 m/s × 18/5 = 54.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: C
12 m/s × 18/5 = 43.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: D
30 m/s × 18/5 = 108.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: C
30 m/s × 18/5 = 108.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: D
8 m/s × 18/5 = 28.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: B
20 m/s × 18/5 = 72.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: B
18 m/s × 18/5 = 64.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: B
15 m/s × 18/5 = 54.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 6 s. Speed in km/h is
Answer / solution
Correct option: D
40 m/s × 18/5 = 144.
Go at 50 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 64 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 14 s. Speed in km/h is
Answer / solution
Correct option: A
12 m/s × 18/5 = 43.
Go at 40 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: D
2uv/(u+v) = 55 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
A train 120 m long crosses a pole in 12 s. Speed in km/h is
Answer / solution
Correct option: B
10 m/s × 18/5 = 36.
Go at 80 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: C
2uv/(u+v) = 84 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
20 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 72 km/h.
A train 240 m long crosses a pole in 10 s. Speed in km/h is
Answer / solution
Correct option: C
24 m/s × 18/5 = 86.
Go at 70 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: A
2uv/(u+v) = 78 km/h.
Speed 36 km/h for 2 hours. Distance is
Answer / solution
Correct option: B
D = S×T = 72 km.
10 m/s in km/h is
Answer / solution
Correct option: D
×18/5 = 36 km/h.
A train 180 m long crosses a pole in 8 s. Speed in km/h is
Answer / solution
Correct option: C
22 m/s × 18/5 = 79.
Go at 60 km/h and return the same road at 90 km/h. Average speed is
Answer / solution
Correct option: B
2uv/(u+v) = 72 km/h.
Speed 60 km/h for 2 hours. Distance is
Answer / solution
Correct option: D
D = S×T = 120 km.
30 m/s in km/h is
Answer / solution
Correct option: C
×18/5 = 108 km/h.
FAQs
Are these previous-year SSC questions?
No year or shift is claimed on these pages. Each maths section has 150 original practice MCQs. When a verified source database exists, a question will show exam + year; until then it is practice.
Where are Class 10 board formulas?
The CBSE formula sheet at /cbse/class-10/mathematics/formulas/ stays the canonical board list. This maths hub links to it instead of copying every line.
Do you publish tricks that are only sometimes true?
Every shortcut page states when the trick must not be used. A speed trick that fails on close options is not published as if it were a theorem.
