If an article is sold at 5% gain instead of 5% loss, the

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If an article is sold at 5% gain instead of 5% loss, the man gains $ 5 more. Find the cost price of that article

Let the C.P. be 100% .
∴ (5% + 5%) = 5 [Being 5% gain]
⇒ 10% = 5

1 % =	5
	10

100 % =	5	× 100 = $ 50
	10

We can find required answer with the help of given formula :
Here, a = 5%, R = $ 5, b = 5%

C.P. =	R × 100
	b + a

C.P. =	5 × 100	= $ 50
	5 + 5