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.

Answer 1

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!