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Quantitative Aptitude

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Percentage & Averages

Question
1 out of 20
 

The average weight of 35 students in a class is 42 kg. 5 of them whose average weight is 38 kg leave the class and another 5 students whose average weight is 46 kg join then what is impact on average age of class.



A 1 increase
B 1 decrease
C not impact
D can’t determine
E None of these

Ans. C Impact on avg. = [(42x2) – (38 + 46)] x 5 = 0

Percentage & Averages Flashcard List

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