Math
posted by Simran kaur .
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.

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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