Math

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a man sells a radio set a gain of 5 %.had he sold it for rs.490 less,he would have lost 2 %.find the c.p of the radio set.

  • Math -

    if the cost is c,

    1.05c - 490 = .98c
    c = 7000

    check:
    sold it for 7000 * 1.05 = 7350
    if sold for 490 less (6860) he'd have lost 140, or .02*7000, a 2% loss.

    OK!

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