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Quote:
Im confused

when the statement says that company Y pays 30000(C+D) annual salary
Can you not expand the equation into 30000C + 30000D
That means that the women get 30000C salary annually. So the average will be 30000C / C which gives 30K which is greater than 25K

Where am i going wrong in the logic?

devavrat, let's use contr-example
Let's say, c=1 and d=1, so (c+d)=2 and the total they earn = $30,000*(c+d) = $30,000*2 = $60,000

Could it be the case that woman earns $20,000 and man earns $40,000?
$20,000*c + $40,000*d = $20,000*1 + $40,000*1 = $60,000

This example shows that even if the total can be represented in the form $30,000*(c+d), it does not nesessary lead to the fact that both, women and men, has the same mean salary of $30,000.
Hope it helps a bit.
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