Aptitude - Profit and Loss - Discussion

Well said @Akshay.

Guys!
Check the question, how much did they sell 17 balls for?? Rs.720? Correct.

So now you know how much 17 balls cost, which is 720 bucks.
17=720.

Now,
when you sell 17 balls for 720 rupees, but the question clearly says you face a loss of '5 balls profit'.

How come? So how much does a ball exactly cost?

Lets do one thing,

Selling 17 for 720 but the loss of 5, we will minus the 5 with the 17, so,

17-5 = 12.
12 is our profit for 720. which is, 720=12!!

So,
Cost of 1 ball *12=720
Cost of 1 ball = 720/12
Cost of 1 ball = 60.

Thank you for explaining it properly @Manasa.

Thank you all for explaining the solution.

Nice explanations. Thank you all.

cp of 17 balls = 720 + cp of 5 balls,
cp of 17 balls - cp of 5 balls = 720,
cp of 12 balls = 720,
cp of 1 ball = 720/12,
So, cp of 1 ball = 60.

Hi, can anyone help me by solving this problem?

If the cost price of 10 chairs is equal to the selling price of 16 chairs, then the loss percent is?

a) 37.5%
b) 20%
c) 9.6%
d) 17.5%

I didn't understand this, kindly give simple examples.

Nice explanation @Tarun.

17 balls selling we get 720.
Good.but loss is there, we don't know. It was given that out of 5 balls equals to loss c.p. i.e subtract 17 from 5 = 12, I want c.p of each ball so, 720/12 = 60.