A weighting machine of a trader weights 10 less than it should and the trader marks up his good...........

Quant (SSC) Profit and loss

A weighting machine of a trader weights 10% less than it should and the trader marks up his goods to get an overall profit of 18%.How much does he mark up on the cost price ?

6.2%

6.5%

6.3%

5.6%

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Explanation:

Cp = Rs.1 per gram
1000gms =>10% less = 900gms—–vales of good sold – x%
MP = 1000+(1000X/100) = 1000+10X
% P = [(1000+10X-900)/900]×100
18 =(100+10x)/9
162 = 100+10x
10x = 62
X = 6.2%