Question

find the cost price SP rupees 49 loss 2%

Answer 1

Let CP be x
then SP = CP- 2% of CP
49=x-2x/100
49=(100x/100) - (2x/100)
49=98x/100
4900=98x
x=4900/98
x=50
...
so CP =50

Answer 2

Let CP be x
Sp= 49
loss=2%
loss=2/100*x=x/50
now, cp-loss=sp
x-x/50=49
49x/50=49
x=49*50/49
x=50
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