Multiple choice

If Rohit leaves home and drives to his school at a speed of 45km/hr, he reaches 5 min later than when he drives at 60 km/hr speed. Find the distance to his school. (in m)

  1. 18000

  2. 15000

  3. 14000

  4. 10000
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Time difference = 5 minutes = 1/12 hour. Let distance be d km. d/45 - d/60 = 1/12. Solving: d(1/45 - 1/60) = 1/12, d(4/180 - 3/180) = 1/12, d/180 = 1/12, d = 15 km = 15000 meters.

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