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 Input:
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 Output:
Option A


Ex Input:
Question: The average salary per head of the entire staff of an office including the officers and clerks is Rs.90. The average salary of officers is Rs.500 and that of the clerks is Rs.84. If the number of officers is 2, find the number of officers in the office?

 Option A: 620

 Option B: 720

 Option C: 820

 Option D: 920

 Option E: 1020

Ex Output:
Option C


Ex Input:
Question: A new home buyer pays 4% annual interest on her first mortgage and 9% annual interest on her second mortgage. If she borrowed a total of $325,000, 80% of which was in the first mortgage, what is her approximate monthly interest payment?

 Option A: $1,354

 Option B: $1,733

 Option C: $3,466

 Option D: $13,333

 Option E: $20,796

Ex Output:

Option A