Aptitude - Profit and Loss - Discussion

Take 1 Rupee=100% so Rq gain = 20 therefore gain =100/20= 5 so. Do like this many problems and ex: if 15 Rs then multiply into 100 1500/20.

I have doubt.
I take each toffee one rupee,
Profit=20%.

Then,
SP-CP/CP *100=20%,

SP=7.2 Rs,

How to relate with this question?

See..
C.P of 6 toffees = Rs 1,
Profit=20%,

S.P = (1+P%)*C.P.

= (1+20/100)*1 = (120/100)*1 =1.2*1 1.2.

If Rs 1.2 is the S.P of the toffee = 6.
So, Rs 1 is the S.P of the toffee = 6/1.2 = 60/12 = 5 answer.

This is very simple solution.

((6-x)/x)*100=20 then x=5.

For articles we have to take selling articles(x) as base for profit percentage.

Cost price of 1 toffee is 1/6.
Now at 100 --- 1/6.
Then at 120 ---- ?.

120*1/6 = 20/100 = 1/5.

I.e. it means selling price of 1 toffee is 1/5.

1 rupee for 5 toffees.

C.P of 6 toffee = Re 1.
S.P of 6 toffee = 120% of Re 1 = 1.2.
S.P of 1 toffee = 6/1.2 = 5.

Guys it's so simple Just read the question carefully you'll get the answer easily.

You can go from the answer itself.

Option D - It can't be because it is already given that he sold 6 toffees for 1 rupee. So if he sells 6 toffees for 1 rupee he won't have any profit. So its not the answer.

Option B - If he sells four toffees for 1 rupee then cost of 1 toffee is 1/4=0.25, therefore 6 toffees will make 1.25rs. But it is given that 20 % profit. So it should be 1.20rs only. So its not the answer.

Option A - If he sells 3 toffees for 1 rupee then other three he'll sell for another one rupee, which gives him 100% profit. So its not the answer.

Option C - Obviously this should be the answer.

What is the gain in this question?

How 6*5/6 has come?