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Question
If w is 10% less than x, and y is 30% less than z, they wy is what percent less than xz?
10%
20%
37%
40%
ANSWER : 3
Descrption
Let the profit be X% & loss be Y%. <br/> So, net profit/loss % = X + ( - Y) + X.( - Y)/100 (Negative sign denotes that there is a loss.) = 10 + ( - 10) + 10.( - 10)/100 = - 1 (Negative sign denotes that there is a net loss.) <br/> So, the net loss percentage is 1%.
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