Q.

A sum of  ₹ 312 was divided among 100 boys and girls in such a way that each boy gets  ₹ 3.06 and each girls  ₹ 2.40 The number of girls is 

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a

35

b

60

c

50

d

40

answer is B.

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Detailed Solution

Total sum =312

No. of total boys and girls =100

Each of them get average no. of rupee =312100

=3.12

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So, number of girls =1005×2=40

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A sum of  ₹ 312 was divided among 100 boys and girls in such a way that each boy gets  ₹ 3.06 and each girls  ₹ 2.40 The number of girls is