Multiple choice

Neha and Sneha run a race. They start from the same point at the same time at respective speeds of 40 km/hr and 25 km/hr. After how much time will Neha be 90 kms ahead of Sneha?

  1. 3h

  2. 4.5h

  3. 6h

  4. 7.5h
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Relative speed = 40 - 25 = 15 km/hr. Time = Distance / Relative speed = 90 / 15 = 6 hours.

AI explanation

Using the relative speed formula, Neha gains 15 kilometers on Sneha every hour, which is the difference between 40 km/hr and 25 km/hr. To lead by 90 kilometers, she needs 90 divided by 15 hours. This results in a required time of 6 hours.

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