Question

if one dozen pencil cost ₹21 ,find the cost of one score pencil​​

Answer 1

Answer:

cost of one score pencil= 21*12

= rs 252

Answer 2

Answer :

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• 1 dozen = 12 quantities

• 1 score = 20 quantities

Now , ATQ :

= Cost of 1 dozen i.e. 12 pencils = ₹ 21

= Then , cost of 1 pencil will be = $\sf \dfrac{21}{12}$

• Now , cost of a score pencil i.e. 20 pencils -

= $\sf \dfrac{21}{12} \times 20$

= $\sf \dfrac{7}{4} \times 20$

= $\sf 7 \times 5$

• Cost of a score pencil = ₹ 35

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