Question

If 6 books cost £18, how much would 7 books cost?

Answer 1

if 6 books cost 18 ,then each 1 book cost 3

therefore 7 books would cost

7*3=21
answer is 21 rupees

Answer 2

cost of 6 books =£18

cost of 1 book= 18/6

=£3

cost of 7 books=7×3

=£21..

hope it helps u