Question

The cost price of 10 articles is equal to the selling price of 8 articles.
The gain or loss percent is :

(A) Gain 20% (B) Loss 25%
(C) Gain 30% (D) Gain 25%

Answer 1

Option D is correct

Gain = 25%


Solution:


Let the C.P of 1 articles = ₹1

C.P of 8 articles = ₹8


S.P of 8 articles = C.P of 10 articles

[Given]


S.P of 8 articles = ₹10

s.p > cp

Gain= s.p - c.p

Gain= 10- 8= ₹ 2

Gain = ₹ 2


Gain% =( gain /c.p) ×100


Gain = (2/8) ×100


Gain=  (1× 100) / 4= 100/ 4= 25%


Gain= 25%

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Hope this will help you....

Answer 2

Hey,
Ur answer is here,
Let the Cost of 10 articles be x
Cost of 10 article =x
Cost of one article =x/10
Sp of 8 article =x [given]
Sp of 1 article =x/8
Sp>cp
Since there is a gain,
Gain=x/8-x/10
Gain=x/40
Gain%=x/40/x/10×100
=25%gain
Hope it helps you ☺️