Question

The cost of 1 dozen pencil is Rs.17.28 Find the cost of 8 pencils​

Answer 1

Answer:

$35

Step-by-step explanation:

1dozen = 12 pencils, and

1 score = 20 pencil

First of all, we need to find the cost of each pencil i.e.

12 pencils costs = $ 21

1 pencil =$ 21/12 =7/4

Now,

Cost of 20 pencil = $ (20x 7/4) =$ ( 5x7) = $35

Hence, cost of one score of pencils is = $35

Answer 2

Answer:

cost of 8 pencils = Rs.11.52

Step-by-step explanation:

Cost of 12 pencils = Rs.17.28

Cost of 1 pencil = 17.28/12 = Rs.1.44

Cost of 8 Pencil = 1.44 x 8 = 11.52