Answers

2016-01-27T20:02:49+05:30
Gautam, Here's the answer....
Price at which Javed sold the watch=$1275
and loss he suffered=15%
So according to formula of Cost Price when Loss is given is                
=100/(100-Loss%)*S.P
=100/(100-15)*$1275
which will result into $1500
So Javed bought the watch in $1500
and, Javed's desired gain or profit is of 20%
So according to formula of Selling Price when Profit is given is
=(100+Gain%)/100*C.P
=(100+20)/100*$1500
which will result into $1800
Hence, Javed should sell the watch for $1800.
And that's the answer..
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2016-01-27T20:14:49+05:30
SP=$1275. LOSS./.=15./.
LET CP= $100
THEN SP=$85
IF SP = $85,THEN CP = $100
IF SP =$1,CP=$100/85
IF SP=$1275,THEN CP=$100/85 * 1275
=$1500
NOW, CP=$1500 AND PROFIT%=10%
THEN,PROFIT=CP*PROFIT%
=$1500*10%
=$150
SP=CP+PROFIT
=$1275+$150
=$1425
THEREFORE,JAVED SHOULD SELL THE WATCH AT $1425 IN ORDER TO GAIN 10%
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