If a man reduces the selling price of a
fan form Rs. 400 to Rs. 380, his loss
increases form x% to (x + 4)%. Is the
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Let the C.P. = Rs. x.
Then First loss % =
x
(x−400)
×100=
x
100x−40000
%
Second loss % =
x
(x−380)
×100=
x
100x−38000
%
Given,
x
(100x−38000)
−
x
(100x−40000)
=4
⇒100x−38000−100x+40000=4x
⇒2000=4x
⇒x=500
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