if a article sold for rupees 100 then there is a gain of rupees 20,which of the following is the gain percent a) 25% b) 22% c) 20% d) 16%
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Let the cost price be x
Then, selling price would be 1.2x.
When C.P. is Rs. 20, less,
C.P. =x−20
S.P. =1.2x−20
Now, 1.2x−20=1.3×(x−20)
⇒1.2x−20=1.3x−26
⇒1.3x−1.2x=−20+26
⇒0.1x=6
⇒x=60
therefore, the cost price of the article is Rs. 60.
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Answer:
SP = 100
profit =20
CP =100-20=80
gain%= 20/80*100
a) 25%
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