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A student Gaurav of weight 50 kg secured...

A student Gaurav of weight 50 kg secured 150 marks. Another student Saurav of weight 40 kg proportion to their marks, how much did Saurav score the exam ?

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The correct Answer is:
120 marks
50 :40 : : 150 : x
` 50/40 = 150/x Rightaarrow 5/4 = 150/x`
` x = 150 xx 4/5 Rightarrow x= 120`
Saurav got 120 marks.
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