Subject: General Aptitude · Chapter: Number System · Exam: 2007 · Marks: · Difficulty:
If $B>A$, then which expression will have the highest value (given that $A$ and $B$ are positive integers)?
(a)$A-B$
(b)$A B$
(c)$A+B$
(d)Can't say
Answer
Answer (as printed): D
Explanation
$B>A \Rightarrow A<B \Rightarrow(A-B)<0$. Since $A$ and $B$ are both positive integers, we have $(A+B)>0$ and $A B>0$. If ( $A=1$ and $B=2$ ), we have $A B<(A+B)$. If ( $A=2$ and $B=3$ ), we have ( $A+B)<A B$. Thus, we cannot say which one of $A+B$ and $A B$ has the highest value.
Explanation as extracted from the printed page; notation may be imperfect.