Question

A passenger train running at a speed of 80 km per hour leaves the railway station 6 hours after the departare of a goods train and overtakes it in 4 hours. the speed of the good train (in km per h)
A 80 ② 60 ① 48 ③ 32​

Answer 1

Answer:

answer is (3) 32km/hrs.

Step-by-step explanation:

according to the question the speed of passenger train is 80km/h

then the relative speed of passenger train with respect to the goods train is (80-x)km/h

where x is the speed of the train

now we know it took the passenger train 4hrs to overtake goods train

since the distance covered by passenger train in 4hrs must be equal to the distance covered by the goods train.

so x(6)=(80-x)(4)

6x=320-4x

10x=320

so x=32 km/hrs

so the speed of the passenger train is 32km/hr