Question

if 12 books cost 960 what is the cost of 45 books

Answer 1

Answer:

Let the books be x

so 12x=960

x=960/12

x= 80

So 1 book is RS. 80

then 45 books = 80*45

Cost of 45 books = 2400

Answer 2

Answer:

the cost of 12 books = 960

cost of 1 book =960/12

=80

cost of 45 books = 45 ×80

=3600