TASK DEFINITION: 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.
PROBLEM: Question: A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture

 Option A: 15 litres

 Option B: 10 litres

 Option C: 30 litres

 Option D: 22 litres

 Option E: 8 litres

SOLUTION: Option B

PROBLEM: Question: Every year an amount increases by 1/8th of itself. How much will it be after two years if its present value is Rs.1600?

 Option A: 3000

 Option B: 4200

 Option C: 2025

 Option D: 1205

 Option E: 3251

SOLUTION: Option C

PROBLEM: Question: A train 400 m long can cross an electric pole in 20 sec and then find the speed of the train?

 Option A: 76 Kmph

 Option B: 88 Kmph

 Option C: 72 Kmph

 Option D: 55 Kmph

 Option E: 44 Kmph

SOLUTION:
Option C