Selected MCQ

Current Question
An airplane travels at 240 km/h for 5 houRs. What speed is required next?
  • A. 660 km/h
  • B. 680 km/h
  • C. 700 km/h
  • D. 720 km/h
Correct Answer: D
Explanation:
Total distance relation.
Related Question 1
If a train travels 120 km in 2 hours, its speed is ____.
  • A. 50 km/h
  • B. 60 km/h
  • C. 70 km/h
  • D. 80 km/h
Correct Answer: B
Explanation:
Speed = 120/2 = 60 km/h.
Related Question 2
If a train travels 90 km in 1.5 hours, what is its speed?
  • A. 50 km/h
  • B. 55 km/h
  • C. 60 km/h
  • D. 65 km/h
Correct Answer: C
Explanation:
Speed = 90/1.5 = 60.
Related Question 3
A man travels 60 km in 2 hours and 40 km in 1 hour. Average speed ____.
  • A. 40 km/h
  • B. 45 km/h
  • C. 50 km/h
  • D. 55 km/h
Correct Answer: B
Explanation:
Total distance/total time.
Related Question 4
Pipes A, B, C fill tank in 12, 15, 20 houRs. If A alone works, time required is ____.
  • A. 6 hrs
  • B. 6⅔ hrs
  • C. 7 hrs
  • D. 7½ hrs
Correct Answer: C
Explanation:
Based on the given combination.
Related Question 5
The speed of the boat in still water is 5 km/h. It travels upstream and downstream the same distance. Find stream speed.
  • A. 5 km/h
  • B. 8 km/h
  • C. 10 km/h
  • D. 15 km/h
Correct Answer: A
Explanation:
Equal time implies that stream speed equals still-water speed.