p111 wrote:
Hi Bunuel,
what if a=0;b=2. we have a/b as positive
as a result ab = 0. C fails.(:D is this some kind of miss in the question or Am i missing my basics here)
Tx
what if a=0;b=2. we have a/b as positive
as a result ab = 0. C fails.(:D is this some kind of miss in the question or Am i missing my basics here)
Tx
Bunuel wrote:
SOLUTION
If the quotient a/b positive, which of the following must be true?
(A) a > 0
(B) b > 0
(C) ab > 0
(D) a-b > 0
(E) a+b > 0
\frac{a}{b}>0 means a and b have the same sign, either both are negative or both are positive. Thus, their product will also be positive: ab>0.
Answer: C.
Kudos points given to everyone with correct solution. Let me know if I missed someone.
If the quotient a/b positive, which of the following must be true?
(A) a > 0
(B) b > 0
(C) ab > 0
(D) a-b > 0
(E) a+b > 0
\frac{a}{b}>0 means a and b have the same sign, either both are negative or both are positive. Thus, their product will also be positive: ab>0.
Answer: C.
Kudos points given to everyone with correct solution. Let me know if I missed someone.
If a=0 and b=2, then a/b=0. 0 is neither positive nor negative.
For more check here: math-number-theory-88376.html#p666609
Hope it helps.