Bunuel
If |m - n| = 3, is m > n ?
(1) mn < 0
(2) The distance between m and 0 is 2
Solution: Pre Analysis:- We are given \(|m-n|=3\) which means distance between m and n is 3
- We are asked if m > n or not. This is a YES-NO question
Statement 1: mn < 0
- mn < 0 means one of m or n will be positive and the other will be negative
- If m is positive then m > n otherwise m < n
- Thus, statement 1 alone is not sufficient and we can eliminate options A and D
Statement 2: The distance between m and 0 is 2
- According to this statement, m = 2 or m = -2
- Possible scenarios:
- \(m = 2, n = 5 → m < n\)
- \(m=2, n=-1 → m>n\)
- \(m=-2, n =1→ m<n\)
- \(m=-2, n=-5→m>n\)
- Thus, statement 2 alone is also not sufficient
Combining: - From statement 1 we get that m and n are of opposite signs
- Thus from statement 2, we are left with 2 scenarios
- \(m=2, n=-1 → m>n\)
- \(m=-2, n =1→ m<n\)
- We still cannot say
Hence the right answer is
Option E