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.

Question: 5, 10, 13, 26, 29, 58, 61, (....)

 Option A: 122

 Option B: 125

 Option C: 128

 Option D: 64

 Option E: 130
Option A

Question: A company consists of 5 senior and 3 junior staff officers. If a committee is created with 3 senior and 1 junior staff officers, in how many ways can the committee be formed?

 Option A: 12

 Option B: 30

 Option C: 45

 Option D: 80

 Option E: 200
Option B

Question: Sachin is younger than Rahul by 18 years. If the ratio of their ages is 7:9, find the age of Sachin

 Option A: 24.5

 Option B: 63

 Option C: 65

 Option D: 36

 Option E: 24.19

Option B