You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

[EX Q]: Question: A shopkeeper sold an book offering a discount of 5% and earned a profit of 30%. What would have been the percentage of profit earned if no discount was offered?

Option A: 140

Option B: 120

Option C: 130

Option D: 136.8

Option E: 150
[EX A]: Option D

[EX Q]: Question: Five players forms a team joins in a shooting game. The best shooter scored 78 points. If he had scored 95 points, the average score for the team would have been 85. The number of points, the team scored, was

Option A: 288

Option B: 345

Option C: 408

Option D: 672

Option E: 578
[EX A]: Option C

[EX Q]: Question: If a is a positive integer then 4^(2a) + (64^a)/(2^(2a)) =

Option A: 0

Option B: 16^16

Option C: 8^15

Option D: 2 16^a

Option E: 18^a
[EX A]:
Option D