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by sanju09 » Thu Aug 26, 2010 10:59 pm
On selling 10 doughnuts if a baker recovers the cost price of 15 doughnuts, then what is the profit percentage of the baker?
(A) 20
(B) 25
(C) 30
(D) 45
(E) 50


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by ymach3 » Thu Aug 26, 2010 11:29 pm
E-50%

bought 15 Ds for 30/- and sold 10 Ds for 30/-.... Then SP of a D is 3 and CP is 2.... Profit %= (3-2)/2=.5*100=50%.
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by sirisha.g » Fri Aug 27, 2010 4:24 am
IMO E.

10SP=15CP => SP=3/2CP

Profit %= (SP-CP/CP)*100 = substituting SP=3/2CP. you will 50%
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