Ron has had 3 pay cuts in her salary in the past 6 months. If the first pay cut was 5%, the second pay cut was 10% and the third was 15%. What will be the percentage decrease, if the salary is decreased in a single shot?
Choose the correct choice from the following options:
A) 29.33 %
B) 27.33 %
C) 17.33 %
D) 27.99 %
E) 29.33 %

Rationale: let rs . 100 be initial salary . salary after 1 st decrease , 5 % = 95 salary after 2 nd decrease , 10 % = 85.5 i . e . reduced by 10 percent of 95 salary after 3 rd decrease , 15 % = 72.675 i . e . reduced by 15 percent of 85.5 so if its decreased in single shot = i = ( ( b - a ) / b ) * 100 = 27.33 % answer : b
Answer: B