Question

The cost of notebooks is Rs. 72 a dozen. The cost of 24 notebooks is *​

Answer 1

1 dozen is 12 books,

so 24 books is 2 dozen

So cost of 24 notebooks = 2 X RS. 72

                                          = Rs. 144

Answer 2

Answer:

Cost of 24 notebooks = Rs. 144

Step-by-step explanation:

A dozen = 12

Cost of 12 notebooks = Rs. 72

∴ Cost of 1 notebook = 72/12

∴ Cost of 1 notebook = Rs. 6

∴ Cost of 24 notebooks = 24 x 6

∴ Cost of 24 notebooks = Rs. 144