Question

The cost of a science book is 5 times the cost of English book. If a man purchase 5 English books and 3 science book and pays rupee 300 to shopkeeper,find the cost of each book separately.

Answer 1

Answer:

english book = 15

science book = 75

Step-by-step explanation:

let cost of english book = x

then cost of science book = 5x

now ,

    =>   5(x)+ 3(5x) = 300

    =>   5x +15x = 300

    =>   20x = 300

    =>    x = 15