Question

Q5.A train covers a distance of 36 km in 15 minutes. Find the time taken by it to cover the same distance if its speed is decreased by 9 km/h

Answer 1

Step-by-step explanation:

15 mins = 1/4 hr

$v = \frac{d}{t}$

v = 36/0.25= 144 km/h

v' = 144 - 9= 135 km/h

t'= 36/ 135= 4/ 15 hr

Answer 2

Answer:

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