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Q.


When a calculator is sold for Rs 1325, a man earns a profit of 6% . The cost at which he should sell it to gain 12% is Rs[[1]].

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Detailed Solution

 When a calculator is sold for Rs 1325, a man earns a profit of 6% . The cost at which he should sell it to gain 12% is Rs. 1400.
Given that, when a calculator is sold for Rs 1325, a man earns a profit of 6%.
S.P=selling price.
C.P=cost price.
Gain=S.P-C.P
Gain%= S.P−C.P C.P ×100  
Loss=C.P-S.P
Loss%= C.P−S.P C.P ×100   C.P of the calculator at a gain of 6% is,
= 100 100+6 ×1325 = 100 106 ×1325 =1250  
Therefore, the S.P of calculator at a gain of 12% is,
= 100+12 100 ×1250 = 112 100 ×1250 =112×12.5 =1400   The S.P of calculator at a gain of 12% is ₹1400.
 
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