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.

Input: Consider Input: Question: P can do a work in 24 days. Q can do the samework in 9 days & R can do the same work in 12 days. Q & R start the work and leave after 3 days. P finishes the remaining work in how many days.

 Option A: 8

 Option B: 10

 Option C: 14

 Option D: 16

 Option E: 19

Output: Option B


Input: Consider Input: Question: A mall charges 50 cents for the first hour of parking and $4 for each additional hour until the customer reaches 4 hours, after that the parking fee is $2 per hour. If a Rahul parked his car in the mall for 7 hours and 30 minutes, how much is he going to pay?

 Option A: $25

 Option B: $12.

 Option C: $23.5

 Option D: $24.5.

 Option E: $25.5

Output: Option A


Input: Consider Input: Question: A boat can move upstream at 20 kmph and downstream at 35 kmph, then the speed of the current is?

 Option A: 5

 Option B: 6

 Option C: 7.5

 Option D: 8

 Option E: 9


Output: Option C