leonswati wrote:34 In a certain year, the port of Valdez Harbor handled 240 percent of the cargo tonnage handled by the port of Duluth. How many tons of cargo were handled by the port of Norfolk Harbor in that year?
1) Valdez Harbor handled 101,000 tons of cargo.
2) Norfolk Harbor handled 15 percent more cargo tonnage than Duluth.
Let's begin by summarizing the given information.
We'll let V = the number of tons handled by Valdez
We'll let D = the number of tons handled by Duluth
and we'll let N = the number of tons handled by Norfolk
If Valdez handled 240 percent of the tonnage handled by Duluth, we can write
V = 2.4D
Our goal here is to
find the value of N
Statement 1: This tells us that
V=101,000
At this point, we know that
V = 2.4D and
V=101,000, so we
could find the value of D, but this would not provide enough information to determine the value of N (and answer the target question)
As such, statement 1 is not sufficient
Statement 2: This tells us that
N =1.15D
At this point, we know that:
V = 2.4D and
N =1.15D, which means we still cannot determine the value of N.
As such, statement 2 is not sufficient
Statements 1 & 2:
Combining all information, we get:
a)
V = 2.4D
b)
V=101,000
c)
N =1.15D
Using a) and b) we
could find the value of D (but we won't since all we need to do is show sufficiency)
Once we know the value of D, we can use c) to find the value of N (and answer the target question)
As such, the statements combined provide sufficient information and the answer is
C
Cheers,
Brent
