Raghu by means of his false balance frauds to an extent of 20 in buying goods and also frauds to nbs...........

Quantitative Aptitude (CDS) Profit and loss

Raghu by means of his false balance frauds to an extent of 20% in buying goods and also frauds to 20% in selling. What is his gain percent?

40%

35%

55%

50%

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Explanation:

Let the actual CP of an good be Re.1 then the effective CP = 100/120= 5/6
Again SP = 100/ 80 = 5/4
( since he sells only 90 goods charging the CP of 100 goods)
Gain % = [(SP-CP)/CP]100 = [ { (5/4)-(5/6)}/(5/6)] 100
= [ ( 5/12)(6/5)]100 = 100/2
= 50 %