Aptitude - Profit and Loss - Discussion

Discussion Forum : Profit and Loss - General Questions (Q.No. 11)
11.
On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is:
Rs. 45
Rs. 50
Rs. 55
Rs. 60
Answer: Option
Explanation:

(C.P. of 17 balls) - (S.P. of 17 balls) = (C.P. of 5 balls)

C.P. of 12 balls = S.P. of 17 balls = Rs.720.

C.P. of 1 ball = Rs. 720 = Rs. 60.
12

Discussion:
91 comments Page 1 of 10.

Srii said:   1 decade ago
How can C.P of 12 balls = S.P of 12 balls?

Raghav said:   1 decade ago
IT IS SP of 17 balls,not 12 balls!!!!!

Khushi said:   1 decade ago
SP of 17 balls will be subtracted CP of 5 balls. Because there is a loss equal to 5 balls in selling of 17 balls.

Manasa said:   1 decade ago
Consider cp of 1 ball =x
for 17 balls=17x;
loss=cp-sp(here 17balls cost price-17balls selling price)
i.e 17x-720;
for 5 balls cp is 5x;
in the question he give 17 balls loss=cp of 5 balls
i.e 17x-720=5x;
17x-5x=720;
12x=720;
x=720/12;
x=60.
(13)

Soni said:   1 decade ago
Thank you Manasa.

Kiran said:   1 decade ago
Why it cann't be solved like this:

Loss = CP-SP
Acc to the ques
SP is given for 17 balls i.e 720
So SP of 1 ball = 720/12
let cp of 1 ball = x
loss = 5x (loss equals to the cp of 5 balls)
5x=x-720/17
5x = 17x-720/17
5x-17x= 720/17
12x = 720/17
x=???

Amrendra said:   1 decade ago
Manasa is right.

Jyoti said:   1 decade ago
Thank you manasa.

Quant said:   1 decade ago
Yeah manasa you are right.

Sujeet said:   1 decade ago
Manasa's Answer is Correct


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