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.

Q: Question: The ratio of three numbers is 1:2:3 and their sum is 60. The second number of the three numbers is?

 Option A: 24

 Option B: 26

 Option C: 20

 Option D: 29

 Option E: 30

A: Option C
****
Q: Question: If a Bus is travelling at a speed of 45 kmph, crosses a pole in 1 sec, then the length of train is?

 Option A: 12 m

 Option B: 12.3 m

 Option C: 12.5 m

 Option D: 12.8 m

 Option E: 13 m

A: Option C
****
Q: Question: What approximate value should come in place of the question mark (?) in the following equation?
1.542 × 2408.69 + 5134.632 = ?

 Option A: 4600

 Option B: 4800

 Option C: 5200

 Option D: 6400

 Option E: 8800

A:
Option E
****