Math, asked by sanjayanju572, 4 months ago


a. 5 pens cost * 20. Find the cost of 8 pens and then 15 pens,​

Answers

Answered by abhijeet202170
1

20/5=4

so,1pen= ₹4

8×4=32 and 15×4= 60

Answered by shahegulafroz
1

Answer:

The cost of 8 pens is 32 .

The cost of 15 pens is 60 .

Step-by-step explanation:

Given information,

the cost of 5 pens is 20

We have to find out the cost of 8 pens and 15 pens

As,

The cost of 5 pens = 20

The cost of 1 pen =  \frac{the  \: cost \:  of  \: 5\: pens }{5}

The cost of 1 Pen  =  \frac{20}{5}

By dividing 20 by 5 we get

The cost of 1 pen = 4

The cost of 8 pens = The cost of 1 pen × 8

The cost of 8 pens = 4 \times 8

The cost of 8 pens = 32

The cost of 15 pens = The cost of 1 pen × 15

The cost of 8 pens = 4 \times 15

The cost of 8 pens = 60

Hence,

The cost of 8 pens is 32 .

The cost of 15 pens is 60 .

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