Question

A book seller has 100 books. He sells 20 books at the rate of Rs 38 per book and the remaining books at the rate of Rs 40 per book. Find the total amount of money he earns. Write a mathematical statement to find the answer.​

Answer 1

Books @rs 38 = 20x 38 = rs760

Books @ rs 40 = 40x 80= rs 3200

Total =rs 3960

Answer 2

Given : The book seller has 100 books.

He selled 20 books each for 38 rs

and 80 books each for 40 rs

38 × 20 = 760

&

40 × 80 = 3200

Therefore, seller sells 80 books for 3200 rs

and 20 books for 760 rs

therefore, 760 + 3200

= 3960

hence, the total amount that the seller gets is=3,960 rs.

hope it will help you. ☆ ☆ ☆ ☆