Question

If one dozen pencil cost 21 ruppes ,find the cost of one score pencils

Answer 1

12pens cost=21rupees
20 pens cost=x
12x=20×21
x=420/12
x=35rupees is answer obtained

Answer 2

hi ,

Given : One dozen pencils cost Rs 21

we know 1 dozen =12 , So

12 pencils cost is Rs. 21

Then

1 pencil cost is 2112 = Rs. 1.75

And

1 Score = 20

So,

Cost of one score of pencils = 20 × 1.75 = Rs.35 Ans )

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akshita