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ICSE-VIII-Mathematics

08: Profit, Loss and Discount Class 8 Maths

with Solutions - page 3
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  • #3
    By selling an article for Rs.900; a man gains 20%. Find his cost price and the gain.
    Ans : S.P. of an article = Rs. 900
    Gain = 20%
    C.P. = 100/(100 + Gain%) × S.P.
    ∴ C.P. = 100/(100 + 20) × Rs. 900
    = Rs. 100/120 × 900
    = Rs. 9000/12
    = Rs. 750
    Gain = S.P. - C.P.
    = Rs. 900 - Rs. 750
    = Rs. 150