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.
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Question: 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

Answer: Option B


Question: Question: Two trains of equal are running on parallel lines in the same direction at 45 km/hr and 36 km/hr. The faster train passes the slower train in 36 sec. The length of each train is?

 Option A: 45

 Option B: 88

 Option C: 66

 Option D: 55

 Option E: 22

Answer: Option A


Question: Question: (8^16)+(16^13)+(4^20) = ?

 Option A: (4

 Option B: (6

 Option C: (9

 Option D: (28

 Option E: 2^148

Answer:
Option B