Bunuel wrote:
The following table shows the price of a plane ticket for an April 1st flight, based on the date of purchase.

Harpreet purchased a ticket on March 1st. If he had purchased the ticket on March 2nd, he would have paid x percent more. If he had purchased the ticket on March 16th, he would have paid y percent more than he would have paid on March 2nd. What is the positive difference between x and y?
(A) 5
(B) 14
(C) 20
(D) 25
(E) 28
Ticket price percentage increase on March 02 when compared to March 01 = \(\frac{(168-140)}{140}\)*\(100\)= \(\frac{28}{140}\)*\(100\) =\(20\)
% =\(x\)
Ticket price percentage increase on March 16 when compared to March 02 = \(\frac{(210-168)}{168}\)*\(100\)= \(\frac{42}{168}\)*\(100\) =\(25\)
% =\(y\)
Hence , The positive difference between x & y = \(25-20\) =\(5\)
%Hence I would go for
option A.
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Please let me know if I am going in wrong direction.
Thanks in appreciation.