The percentage profit earned by selling an article for Rs. 960 is equal to the percentage loss incurred by selling the same article for Rs. 640. At what price should the article be sold to make 35% profit?
Solution: Let C.P be Rs. X. Then, (960-x)*100/x = (x-640)*100/x
=> 960 -x = x - 640.
=> 2x = 1600 => x =800.
.'. Required S.P. = 135% of Rs. 800 = Rs.(135*800/100) = Rs. 1080.
where on earth do you get 135?
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