Exams › SSC CGL (Prelims) › General

Dhiraj goes to his school from his house at a speed of 3.8 km/h and returns at 2.6 km/h. If he takes 5 hours for the round trip, the distance between his house and school is:

1. 6.79 km
2. 6.5 km
3. 7 km
4. 7.72 km

Correct answer: 7.72 km

Solution

If the one-way distance is \(d\), then total time is \(d/3.8 + d/2.6 = 5\). Solving gives \(d\approx 7.72\) km. So the distance between house and school is 7.72 km.

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