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