Question

the cost of 8 pencil is rs 10 find the cost of 20 pencil with method
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Answer 1

Answer:

Given:-

The cost of 8 pencils is ₹10, find the cost of 20 pencils ( with method ).

To Find:-

The cost of 20 pencils

Note:-

●》For getting the cost of 20 pencils, the 8 pencils amount should become 1 pencil amount ( unitary method ) , for 1 pencil = 8 pencil amount ÷ 8 ( number of pencil )

●》After getting the 1 pencil amount, For 20 pencil amount = 1 pencil amount will be 20 times ( times is multiply ) more than 1 pencil amount.

Solution:-

8 pencil amount = ₹10

☆ According to note first point~

▪︎ 1 pencil amount = 8 pencil amount ÷ 8 ( number of pencil )

▪︎$1 pencil = ₹10 ÷ 8$

☆ After doing calculations~

▪︎$1 pencil = ₹1.25$

1 pencil = ₹1.25

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♧[ Now for 20 pencils ]

☆ According to note second point~

▪︎$20 pencils = 1 pencil \ \ amount × 20$

▪︎$20 pencils = ₹1.25 × 20$

☆ After doing calculations~

▪︎$20 pencils = ₹25$

Answer:-

Hence the amount of 20 pencils = ₹25

:)