The average weight of a class of student is 67.5 kg the weighy of class teacher is 25% more than the average weight of the class. The average weight of class is less than the class teacher by x% the value of x is?
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Greetings!
100 ==25% ↑ ==> 125 ==x%↓ ==> 100.
x% = (25 *100) /100 = 20%.
We don't need the actual value to calculate the answer.
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