Question
X and Y are two numbers. Their average is 315, and the
sum of X and Y is 180% of X. What percentage of X is the difference between X and Y?Solution
ATQ;
Since X + Y = 180% of X
So, X : Y = 5 : 4
(X − Y) : X = 1 : 5
Therefore,
1/5 × 100% = 20%
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