Question

A train goes from Delhi to Agra in 3 hours at
a uniform speed. On its return trip, it travels at
a speed that is 10 kmph less and takes 30 minutes
more. What is the distance between Delhi and Agra?​

Answer 1

Answer:

Step-by-step explanation:

Approximately 1or2 km

Answer 2

Answer:

let the speed of train is y and the distance between Delhi to Agra is x

the train moving with constant speed so,

s=d/t then

y=x/3 ............eq(i)

according to question when he return from trip

speed =y-10

time take=3-1/2=5/2(in hr.)

distance is same= x

so,

1. y-10=2x/5 .......eq(ii)
2. from eq(i) y=x/3 putting this value in 2nd eq.

• 5x/3 - 50=2x
• 5x-150=6x
• x= -150 km
• neglect negative sin because distance can't be negative