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: The total of the ages of Amar, Akbar and Anthony is 30 years. What was the total of their ages three years ago ?

 Option A: 20 years

 Option B: 28 years

 Option C: 71 years

 Option D: 21 years

 Option E: 31 years

Answer: Option D


Question: Question: I. a3 - 305 = 207,
II. b2 - 72 = -8 to solve both the equations to find the values of a and b?

 Option A: a > b

 Option B: a ≥ b

 Option C: a < b

 Option D: a ≤ b

 Option E: a = b or the relationship between a and b cannot be established.

Answer: Option B


Question: Question: The length of the bridge, which a train 130 meters long and travelling at 45 km/hr can cross in 30 seconds, is?

 Option A: 265 m

 Option B: 755 m

 Option C: 245 m

 Option D: 127 m

 Option E: 156 m

Answer:
Option C