Question

if 15 pens cost rs 90 then find the cost of 270 such pens​

Answer 1

Answer:

cost of 15 pens =₹90

1 pen cost = ₹ 90/15 = ₹6

cost of 270 pens = ₹6× 270

=₹ 1,620

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Answer 2

Answer:

Cost of 270 pen is 1620rs

Step-by-step explanation:

Given that

cost of 15 pens is 90 rs

To find

cost of 270 pen

Solution

As cost of 15 pens given from this we can determine cost of 1 pen as

$cost \: of \: 1 \: pen = \frac{90}{15}$

by divide we get

$cost \: of \: 1 \: pen = 6rs$

now

$cost \: of \: 270 \: pen = 270 \times 6$

by multiplication we get

$cost \: of \: 270 \: pens = 1620rs$