Question 80

A bag has Rs 43 in the form of 5-rupee, 50-paise and 10-paise coins in the ratio of 1:5:11. What is the total number of 50-paise coins?

Solution

Let 5/- coins = x

50paise coins = 5x

10paise coins = 11x

toal amount = 43

(x)(5)+(5x)(0.5)+(11x)(0.1) = 43

8.6x = 43

x = 5

No.of 50paise coins = 5x = 5(5) = 25

so the answer is option B.

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