Question

The value of 36 coins of 10p and 20 p is rs.6.60. The number 20 p coins are

Answer 1

let, number of 20 paise be x

360+20x=660
20x=660-360
=300
x=15

Answer 2

Answer:

CORRECT ANSWER IS = 30

Step-by-step explanation:

Let the number of 20paise coins be x.

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Then , number of 10 paise coins

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=(36−x).10 (36 - x) + 20x = 660

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or

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10x = 300or x = 30.

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