Question

the cost of a book is ₹ 12 more than 3 times the cost of a copy the sum of their cost is ₹72 find their cost ​​

Answer 1

Answer:

Cost of a book=12 more. than 3 times

The sum of their cost =72rs

Let the cost be x

3x=72-12

3x=60

=60÷3

Hence, their cost =20