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:
360 comments Page 25 of 36.

Vaishnavi said:   9 years ago
Why this (y-x)=(2x-x) is done? Explain.

Milan aryal said:   9 years ago
Bina Chand bought two kettles for Rs 1,625. She sold one of them at 20% profit and the others at 20% loss. If the selling price of both kettles are same, find the total cost price of each kettles and find her gain or loss percent in total transaction.

Can anyone solve this?

Darakhshan Anjum said:   9 years ago
Well done @Sanjeet.

Kavya said:   9 years ago
Guys, here the key point is that cost price is same as selling price.

Gyanajyoti said:   9 years ago
Hello @Dosto

Let me explain,
In this sum we take Easy method:
Cp=(100/100+GAIN%)s.p.
so
x=(100/125)20
x=16.

Suman said:   9 years ago
If no of articles are 66 and profit is 22 then what will be the profit %?

Sai reddy said:   9 years ago
As per given question.

CP of 20 articles =SP of x articles.
CP/SP=X/20.
here CP=x, SP=20.
GAIN%=(GAIN/CP) 100.
25 =(20-X/X)100.
X=16.

Akash Kalyankar said:   9 years ago
Suppose cost of 1 article is 1 rupees.

The cost of 20 articles is 20 rupees.

1) sp of 20 articles will be 25 (with 25 % profit)
2) what will x be for sp = 20; (as cp 0f 20 = sp )

20 -----> 25.
x ------> 20.

x = 20 * 20 / 25.
x = 16.

Kishore said:   9 years ago
Here ,we dont know the value of s.p but in condition given that , s.p of x articles = 20 articles of c.p.

let c.p of 1 article is 1/-
so,c.p of x article become x/-
as per condition,
s.p of x article is 20/-(s.p of x articles which is equal to c.p of 20 article (i.e 20/-)).
p%=(s.p-c.p)/c.p *100.
=(20-x)/x*100 = 16.

Divya Pahwa said:   9 years ago
@Sanjeet Kumar.

Very nice and clear explanation. Thank you.


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