Question

ram reads 2/5 part of a book in 1 hour. how much part of the book will he read in 3 1/2 hours ​

Answer 1

Answer :-

He will read 5/7 part of a book in 3 1/2 hrs.

For 1 hr, 1:2/5 = 1 / 2/5

= 5/2

For 3 1/2 hrs,

3 1/2 / x = 7/2 / x

= 7/2x

Then, For 1 hr / For 3 1/2 hrs

5/2 = 7/2x

10x = 14

x = 5/7