11- Multiple choice questions (MCQs) :
iis A man bold an article at a loss of 20%. If he sold it
for & 12 more, he would have gained 10%. The cost
price of the article is :-
(0) 60 (b) & 40 b(c) Z30 (d) { 22.
Answers
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Step-by-step explanation:
Assume the cost of article is x
the person sold at 20% loss
Loss % =
C.P
C.P−S.P
=
x
x−S.P
=
100
20
∴ S.P =0.8 x
If he had sold it for Rs. 12 more, then he would have gained 10%.
Gain % =
C.P
S.P−C.P
=
x
(0.8x+12)−x
=
100
10
∴12−0.2x=0.1x
∴12=0.3x
∴x=40
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