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Time, Speed & Distance · Question 28 of 71

Question 28

MediumOriginal question

Two buses leave Pune and Nashik, 210 km apart, at 8:00 a.m. and travel towards each other at 40 km/h and 30 km/h. The Pune bus is the faster one. How far from Pune do they meet?

90 kmCorrect answerYour answer105 kmCorrect answerYour answer120 kmCorrect answerYour answer140 kmCorrect answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Closing speed = $40 + 30 = 70$ km/h, so they meet after $\frac{210}{70} = 3$ h.
The Pune bus covers $40 \times 3 = 120$ km in that time.

Worth noting

90 km is the Nashik bus's share, measured from Nashik. The distances split in the ratio of speeds, $4 : 3$ .

Concept: Meeting point divides the distance in the ratio of the speeds
Typical timeTypical: 55 s
Your timeYours: —

The rule this testsRelative speed

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