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Question Number 45905 by peter frank last updated on 18/Oct/18

Answered by math1967 last updated on 18/Oct/18

$$letnoofboys=xandnoofgirls=y$$$$\therefore \frac{50x+54y}{x+y}=52$$$$50x+54y=52x+52y$$$$2x=2y\Rightarrow \frac{x}{y}=\frac{1}{1}$$$$boys:girls=1:1$$

Answered by math1967 last updated on 18/Oct/18

$$totalreduce15\times 1=15kg$$$$wt.ofnewpupil=40-15=25kgans$$

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