Question

if 12 pencils cost ₹90 then the cost of 15 pencils is


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Answer 1

Given:

12 pencils cost Rs. 90 .

To Find:

The cost of 15 pencils.

Step-By-Step Explanation:

12 pencils = Rs. 90

1 pencil = Rs. 90 / 12

1 pencil = Rs. 15/2 = Rs. 7.5

Cost of 15 pencils = Rs. 7.5 × 15

Cost of 15 pencils = Rs. 112.5

Answer:

The cost of 15 pencils is Rs. 112.5 .

Answer 2

Given information,

The cost of 12 pencil is ₹90.

We have to find out the cost of 15 pencils.

As,

The cost of 12 pencils = 90.

The cost of one pencil = $\frac{the \: cost \: of \: 12 \: pencile}{12}$

The cost of 1 pencil = $\frac{90}{12}$

The cost of 1 pencil = 7.5

The cost of 15 pencils= The cost of 1 pencil × 12

The cost of 15 pencils = 7.5× 15

The value of 15 pencils = 112.50

Hence,

The cost of 15 pencils is ₹ 112.50