Question

If a man purchase some apples at the rate of 4apples for₹5 and
sells them at the rate of 5apples for ₹4 how much profit or loss does he make​

Answer 1

Step-by-step explanation:

he get ₹1 loss.

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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.

This is a tested and checked answer, i got the same in my examination and scored full marks.