Question

The ratio between the speeds of two trains is 7: 8. If the second train runs 440 kms in 4 hours, then the speed of the first train is:

A. 47.4 km/hr

B. 57.19 km/hr

C. 68.13 km/hr

D. 96.25 km/hr

Answer 1

Hi @Durag

Let consider speeds of two trains be

7x km/hr. ________(1)
8x km/hr. ________(2)

So,
      $8x = \frac{440}{4}$
      $x = 13.75$

By putting this x value in equation (1) We get

speed of the first train = 13.75*7

= 96.25 km/hr

So the correct option is (D)

Answer 2

Answer:

can you please tell me which book question is this?

Step-by-step explanation:

please