Due to 25% fall in the rate of eggs, one can buy 2 dozen

Solution

Let original rate per dozen is 100. 25% fall in original rate means the new price is 75. That means 75 is equivalent to 162. Therefore 100 is equivalent to: (162*100)/75 = 216 That means original price was 216 and the price after decrement is 162. So the person can now buy 2 more dozens of egg by saving 216-162 = 54 Rs. 2 dozens in 54 means 1 dozen in 27. Hence the original price of 1 dozen egg is rs.27. Hence answer is option c