Correct option is D
Formula Used:
Solution:
Let the man buy 1 dozen oranges in both cases
When a man buys 3 oranges for Rs. 1
Price of one orange =
Price of 1 dozen oranges = × 12 = Rs. 4
Similarly, when a man buys 2 oranges for Rs. 1
Price of 1 dozen oranges = × 12 = Rs. 6
Cost price for 2 dozens = 4 + 6 = Rs. 10
Cost price for 1 dozen = = Rs. 5
We know that,
∴ The selling price will be Rs. 6