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 man has $480 in the denominations of one-Dollar, five-Dollar notes and ten-Dollar. The number of Dollars of each denomination is equal. What is the total number of Dollar that he has ?

Option A: 50

Option B: 60

Option C: 90

Option D: 48

Option E: 67
[EX A]: Option C

[EX Q]: Question: Raman buys an old scooter for Rs. 5000 and spends Rs. 1000 on its repairs. If he sells the scooter for Rs. 7200, his gain percent is :

Option A: 20%

Option B: 12%

Option C: 10%

Option D: 5%

Option E: None of these
[EX A]: Option A

[EX Q]: Question: The length of a rectangular hall is 5 m more than its breadth. The area of the hall is 7502. The length of the hall is :

Option A: 15m

Option B: 22.5m

Option C: 25m

Option D: 30m

Option E: None of these
[EX A]:
Option D