Question

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%​

Answer 1

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 2

Answer:

SP = 100

profit =20

CP =100-20=80

gain%= 20/80*100

a) 25%