Question

Suresh bought 5 apples for ₹4 and sold 4 apples for ₹5 find gain or profit percentage

Answer 1

Answer:

4apples for RS. 5

1apple cost= 5/4 = 1.25 rs

Sale

5 apples for 4

1apple sale cost= 4/5 = .80 RS

So it's a loss = .45 RS loss per apple

Over all loss for 5 apples = 5*.45 = 2.25rs

Answer 2

The CP of 5 apples = 4rs

The SP of 4 apples = 5rs

You can either find CP of 4 apples or SP of 5 apples. I am doing with CP of 4 apples.

The CP of 1 apple = 4/5rs

therefore CP of 4 apples = 16/5rs = 3 1/5rs

fine now you need to find if its loss or gain.

So , here the SP > CP , so its clear that it is gain.

Lets find how much gain:

SP-CP = 5 - 16/5 (LCM = 5)

= 25/5 - 16/5

=9/5

Now lets find gain percentage.

g% = g/cp * 100

g% = 9/5/16/5 (this is 9by5 upon 16by5) * 100

g% = 9*5/16*5 *100

g% = 45/80 * 100 (here you may cut 80's 0 with 100's 0 leaving it as 8 and 10)

g% = 45/8 * 100 (here now you may cut 8 by 4 leaving us with 2 and 100 also by 4 leaving us with 25)  = 45/2 * 25

g% = 1025/2 = 512.5%

So the answer is 512.5%

Hope you understood.