by selling a table for rupees 512 a trader losses 20% for how much rupees should he sell it to gain 20%.
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Answer:
512 is 20 percent loss
100-20=80
therefore 80/100*x=512
4x/5=512
4x=512*5
4x=2560
x= 2560/4
x=640
it is original price
20 percent gain is equal to
640*120/100 (100+20=120)
=(640*6)/5
= 3840/5
=768 rupees
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