A man bought 5 items for 1 rupee, how many items should he sell for 1 rupee so that he gets a profit of 25%?

Correct option is C

Given
CP of 5 items = Re 1
Profit = 25%

Solution
CP of 1 item = $$\frac{1}{5}$$​ = Re 0.20
SP of 1 item = $$CP \times 1.25 = 0.20 \times 1.25 = 0.25$$​​
Items to sell for Re 1 = $$\frac{1}{0.25} = 4\ items$$​​

Final Answer
So the correct answer is (c)