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: When n is divided by 19, the remainder is 7. When n is divided by 11, the quotient is equal to Z, and the remainder is equal to 7. Z must be divisible by which of the following numbers?

 Option A: 16

 Option B: 18

 Option C: 20

 Option D: 19

 Option E: 22
[A]: Option D


[Q]: Question: An inspector rejects 15% of the meters as defective. How many will he examine to reject 15?

 Option A: A

 Option B: B

 Option C: C

 Option D: D

 Option E: E
[A]: Option A


[Q]: Question: Find compound interest on Rs. 7500 at 4% per annum for 2 years, compounded annually.

 Option A: Rs.512

 Option B: Rs.552

 Option C: Rs.612

 Option D: Rs.622

 Option E: None
[A]:
Option C