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The income of X is 60% more than Y’s income and the income of Y is 40% more than Z’s income. X’s income is how much percentage more than Z’s income?

The income of X is 60% more than Y’s income and the income of Y is 40% more than Z’s income. X’s income is how much percentage more than Z’s income? Correct Answer 124

Let Z’s income be Rs. x

Y’s income = x + 40% of x = 1.4x

X’s income = 1.4x + 60% of 1.4x = 2.24x

∴ Required % = {(2.24x – x)/x} × 100 = 124%

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