Answers

2015-04-15T16:36:39+05:30
Say the cost price is C

20 equals the difference in profits : 2\% \text{~of~} C
20=0.02C\\2000=2C\\1000=C
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2015-04-15T17:36:14+05:30

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10% profit  =>    SP =  110/100 * CP
             or        SP =   1.10 CP

SP + Rs 20  gives  12% profit
   SP + Rs 20 =  112/100 *CP  or  1.12 CP
   1.10 CP + 20 =  1.12 CP

   0.02 CP = Rs 20
       CP = Rs 1, 000.

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