A DEALER GIVES 12% DISCOUNT ON ALL ITEMS AND STILL MAKES A PROFIT OF 10% IF HE GAINS 180 ON THE SALE OF AN ITEM FIND THE MARKED PRICE
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S.I = P×R×T/100
= 648 × 12 × 2/100
= 3888/25
= 155.52
A = P (1 + r/100)^t
= 648 (1 + 12/100)^2
= 648 × 112/100 × 112/100
= 8,128,512/10,000
= 812.8512
C.I = A - P
= 812.8512 - 648
= 164.8512
Difference = 164.8512 - 155.52
= 9.3312 ans.
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