Time, Speed & Distance

What you'll learn

Master the core Speed = Distance / Time formula, the 5/18 unit-conversion trick, average speed, and proportionality for SSC-CGL quantitative aptitude.

This chapter has

Time, Speed & Distance — solved practice questions

8 SSC / Banking Quantitative Aptitude questions with step-by-step solutions. Attempt each, then reveal the answer.

1. Q1easy

   Speed = Distance / Time. If distance is 120 km and time is 3 hours, the speed is:

   • A30 km/h
   • B40 km/h
   • C45 km/h
   • D60 km/h
   Show answer & solution

   Correct answer: (B) 40 km/h

   Speed = 120/3 = 40 km/h.

2. Q2easy

   Convert 72 km/h to m/s:

   • A12 m/s
   • B18 m/s
   • C20 m/s
   • D25 m/s
   Show answer & solution

   Correct answer: (C) 20 m/s

   Multiply by 5/18: 72 × 5/18 = 20 m/s.

3. Q3easy

   Convert 15 m/s to km/h:

   • A45 km/h
   • B54 km/h
   • C60 km/h
   • D75 km/h
   Show answer & solution

   Correct answer: (B) 54 km/h

   Multiply by 18/5: 15 × 18/5 = 54 km/h.

4. Q4medium

   A train 200 m long passes a pole in 10 seconds. Its speed is:

   • A20 km/h
   • B54 km/h
   • C72 km/h
   • D80 km/h
   Show answer & solution

   Correct answer: (C) 72 km/h

   Speed = 200/10 = 20 m/s = 20 × 18/5 = 72 km/h.

5. Q5easy

   A car travels 150 km at 50 km/h. Time taken is:

   • A3 hours
   • B2 hours
   • C4 hours
   • D2.5 hours
   Show answer & solution

   Correct answer: (A) 3 hours

   Time = Distance/Speed = 150/50 = 3 hours.

6. Q6hard

   Two trains 100 m and 150 m long run at 60 km/h and 40 km/h in opposite directions. Time to cross each other:

   • A6 s
   • B7.5 s
   • C8 s
   • D9 s
   Show answer & solution

   Correct answer: (D) 9 s

   Relative speed = 100 km/h = 250/9 m/s. Total length = 250 m. Time = 250/(250/9) = 9 s.

7. Q7hard

   A person walks at 5 km/h and reaches 6 min late. If he had walked at 6 km/h he would be 6 min early. The distance is:

   • A3 km
   • B5 km
   • C6 km
   • D8 km
   Show answer & solution

   Correct answer: (C) 6 km

   d/5 − d/6 = 12/60 = 1/5. d(1/30) = 1/5 → d = 6 km.

8. Q8hard

   If a car covers 1/3 of a journey at 30 km/h, 1/3 at 60 km/h and 1/3 at 90 km/h, the average speed is:

   • A60 km/h
   • B540/11 km/h
   • C50 km/h
   • D55 km/h
   Show answer & solution

   Correct answer: (B) 540/11 km/h

   Average speed = 3/(1/30+1/60+1/90) = 3/((6+3+2)/180) = 540/11 ≈ 49.1 km/h.

Want the full set? Practise all 15 Time, Speed & Distance questions →