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: On his first 3 tests, Rajeev received an average score of X points. If on his fourth test, he exceeds his previous average score by 24 points, what is his average score for his first 4 tests?

Option A: X

Option B: X+6

Option C: X+4

Option D: X+3

Option E: X+2
[A]: Option B

[Q]: Question: The difference of two numbers is 1415. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?

Option A: A

Option B: B

Option C: C

Option D: D

Option E: E
[A]: Option B

[Q]: Question: What is the difference between the C.I. on Rs. 8000 for 1 1/2 years at 4% per annum compounded yearly and half-yearly?

Option A: s.3.26

Option B: s.2.08

Option C: s.2.02

Option D: s.2.83

Option E: s.2.42
[A]:
Option A