Question 62

Vishal covers a distance of 20 km in 30 min. If he covers half of the distance in 18 min, what should be his speed to cover the remaining distance and completes the whole journey in 30 min.

Solution

Vishal covers a distance of 20 km in 30 min. He covers half of the distance in 18 mins.

Remaining distance left to be covered $$=20-10 =10 kms$$

Remaining time $$=30-18 = 12 mins = \frac{12}{60} hr $$

Speed $$=\frac{10}{\frac{12}{60}} = 50 kmph $$

Option A is correct.

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