A train moves with a speed of 30 kmph for 12 minutes and for next 8 m…

Question

A train moves with a speed of 30 kmph for 12 minutes and for next 8 minutes at a speed of 45 kmph. Find the average speed of the train?

Accepted Answer

Option B. 36 kmph. Answer & Solution Answer: Option B Solution: & Distance = Speed × Time & Distance covered by train with the & speed of 30 kmph in 12 minutes is & = 30 × 1260 = 6 km & Distance covered by the same train & with the speed of 45 kmph in 8 minutes is & = 45 × 860 = 6 km & Average spe…