Is (7+x)/(8+x) ≥ 7/8?
The question transforms to: is \frac{x}{x+8}\geq{0}. This equation will hold true for x<-8 and x\geq{0}
(1) x <= 0. Not sufficient.
(2) x >= 0. Sufficient.
Answer: B.
The question transforms to: is \frac{x}{x+8}\geq{0}. This equation will hold true for x<-8 and x\geq{0}
(1) x <= 0. Not sufficient.
(2) x >= 0. Sufficient.
Answer: B.