Question

the diff. in price when a commodity is sold at a profit of 4 per cent and at profit of 6 per cent is rs 3 . find the sp of comm. in both cases.

Answer 1

Let the cp be 100
So sp at 4%gain=104
Sp at 6% gain=106
Difference =3
So 106-104=3rs
2=3rs
So 1=3/2
And 100=3/2*100=150
Cp=150
Sp at 4%=150+4/100*150=6
Sp at 4%=156
Sp at 6%=150+6/100*150=9
Sp at 6%=159

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Answer 2

sp=a-p =re
a-10 =rs
a=10+3
a=13