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: If the average (arithmetic mean) of five consecutive negative integers is 8k – 1, what is the difference between the greatest and least of the five integers?

 Option A: 4K

 Option B: 4k^2 -4k

 Option C: 4-4k

 Option D: 4

 Option E: 4k+4
[A]: Option D


[Q]: Question: A grocer purchased a quantity of bananas at 3 pounds for $0.50 and sold the entire quantity at 4 pounds for $1.00. How many pounds did the grocer purchase if the profit from selling the bananas was $6.00?

 Option A:  72

 Option B:  60

 Option C:  90

 Option D:  120

 Option E:  240
[A]: Option A


[Q]: Question: The probability that A speaks truth is 2/5 and that of B speaking truth is 3/7. What is the probability that they agree in stating the same fact?

 Option A: 18/35

 Option B: 17/35

 Option C: 18/36

 Option D: 18/16

 Option E: 18/31
[A]:
Option B