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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

40

c

50

d

60

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 $= \frac{312}{100}$

$= ₹ 3.12$

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So, number of girls $= \frac{100}{5} \times 2 = 40$

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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