Question

if a man purchases 4 apples for Rs 5 and sells 5 apples for Rs 4 how much profit or loss does he make

Answer 1

purchasing 4 apples for 5 rs
1 apple for 1.25 rs
selling
5 apples for 4 rs
1 apple for 0.8 rs

1.25 - 0.8 = 0.45 rs

loss of 0.45 rs . per apple

Answer 2

Buying
The cost of 4 apples = Rs.5
The cost of 1 apple=.80 ruppees

Selling
The cost of 5 apples=Rs.4
The cost of 1 apple=Rs.1.25

He makes loss of .45 ruppees per apple.