Question

A TRAIN TRAVELLING AT A UNIFORM SPEED OF 360 KM WOULD HAVE TAKEN 48 MINUTE LESS TO TRAVEL THE SAME DISTANCE IF ITS SPEED WERE 5 KM/H MORE. FIND THE ORIGINAL SPEED OF THE TRAIN

Answer 1

i hope it is correct

Answer 2

Let the original speed of train be x km/hr.

Time taken = 360/x hrs.

New speed of train= (x+5)km/hr

New Time taken = 360/(x+5) hrs

Given,

360/(x+5) = 360/x - 48

360x = (360-48)(x+5)

360x = 312x + 1560

48x = 1560

x= 32.5 km/hr.