Aptitude - Profit and Loss - Discussion

Discussion Forum : Profit and Loss - General Questions (Q.No. 2)
2.
The cost price of 20 articles is the same as the selling price of x articles. If the profit is 25%, then the value of x is:
15
16
18
25
Answer: Option
Explanation:

Let C.P. of each article be Re. 1 C.P. of x articles = Rs. x.

S.P. of x articles = Rs. 20.

Profit = Rs. (20 - x).

20 - x x 100 = 25
x

2000 - 100x = 25x

125x = 2000

x = 16.

Video Explanation: https://youtu.be/sidqvjUoZxY

Discussion:
353 comments Page 36 of 36.

Manoj said:   4 years ago
Let c.p of 1article=1Rupee.

Formula;
s.p=((100+g%)/100)*c.p.
s.p=((100+25)/100)*1=>1.25,
1aticle's s.p is=1.25,
1.25*16=20.

So 16 articles s.p is equal to c.p of 20.

Omare Oréna said:   3 years ago
Calculating gain w.r.t a single article:

Assume 20 articles cost a certain Price, say 'P'.

That means C.P of 1 article = P/20

X articles were sold at a Price equivalent to the cost of 20 articles, 'P'
Similarly, S.P of 1 article = P/X.

(S.P - C.P)/C.P = 25/100.

Calculate that & find that X = 16.

N.B: For gain, X must be < 20 because fewer items cover the initial cost (investment) so that the rest of the items make up the profit.

Kavya said:   3 years ago
@Shahil Shaji.

Nice explanation keep rocking. Thanks.


Post your comments here:

Your comments will be displayed after verification.