If the price of a certain computer increased 30 percent from d dollars to 364 dollars, then 2d = Choose the correct choice from the following answers:
A) 540
B) 570
C) 619
D) 649
E) 560

Rationale: before price increase price = d after 30 % price increase price = d + ( 30 / 100 ) * d = 1.3 d = 364 ( given ) i . e . d = 364 / 1.3 = $ 280 i . e . 2 d = 2 * 280 = 560 answer : option e
Answer: E