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A Shopkeeper Allows A Discount Off 20% To His Customers And Still Get 20% Find The Marked Price Of An Article Which Cost Him 620 |
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Answer» Step-by-step explanation:Vanitha used this method: Let M.P. be 100. Discount =10% of M.P. = 100 10 of M.P. = 100 10 ×100 = 10 S.P. = M.P. − Discount =100−10= 90 Gain =20% of C.P. = 100 20 ×450= 90 S.P. = C.P. + Gain =450+90= 540 If S.P. is 90, then M.P. is 100. When S.P. is 540, M.P. = 90 540×100 = 600 ∴ The M.P. of an article = 600 OR VIMAL used the formula method: Discount =10%, Gain =20%, C.P. = 450, M.P. = ? M.P. = 100−Discount% 100+Gain% × C.P. = (100−10) (100+20) ×450 = 90 120 ×450 = 600 |
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