Question

if the cost of 5 books is 400 find the cost of a dozen books​

Answer 1

Step-by-step explanation:

Given cost of 6 notebooks =Rs 45.

Then cost of one notebook =Rs

6

45

So cost of 8 notebooks =Rs

6

45

×8=60 Rs

Answer 2

Step-by-step explanation:

cost of 5 books= 400

cost of 1 book =400÷5

=80

cost of a dozen books= 80× 12=960