Multiple choice

A man steals a car at 1:30 p.m. and drives at 40 kmph. At 2 p.m, the owner starts chasing his car at 50 kmph. At what time will he catch the man?

  1. 4:00 p.m.

  2. 4:15 p.m.

  3. 4:30 p.m.

  4. 4:45 p.m.

  5. 3:30 p.m.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Man travels 30 mins (0.5 hr) at 40 kmph = 20 km lead. Relative speed = 50 - 40 = 10 kmph. Time to catch = 20 / 10 = 2 hours. Starting from 2 p.m., he catches him at 4 p.m.

AI explanation

By 2 p.m., the thief has a 30-minute head start, covering 40 kmph multiplied by 0.5 hours, which equals 20 km. The relative speed is 50 kmph minus 40 kmph, which equals 10 kmph. The owner needs 20 km divided by 10 kmph, or 2 hours, to close this gap. Adding 2 hours to the 2 p.m. start time gives the result of 4:00 p.m.

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