A) 40
B) 16
C) 20
D) 100
Correct Answer: A
Solution :
Let the number of boys = x \[\therefore \] Number of 25 paise coins = x According to question \[\frac{25}{100}\times {{x}^{2}}=400\] \[\Rightarrow \] \[\frac{{{x}^{2}}}{4}=400\]\[\Rightarrow \]\[{{x}^{2}}=1600\] \[\Rightarrow \] \[x=\sqrt{1600}=40\]You need to login to perform this action.
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