Question

if the cost of 15 books is rs.150.45 what is the cost of 22 books

Answer 1

Cost of 15 books is 150.45
15=150.45
To find Cost of one book,
Divide 150.45 by 15
Cost of one book comes 10.03

Now, Cost of 22 books will be
22 x Cost of one book
22 x 10.03 = 220.66

The answer is 220.66