THE CORRECT ANSWER IS (C). STATEMENT (1) ALONE ESSENTIALLY PROVIDE...
21. The correct answer is (C). Statement (1) alone essentially provides one linear
equation in two variables: 0.75M
5
1.25S. In this equation, you cannot solve for either
M or S. An infinite number of value pairs are possible. Statement (2) alone presents a
similar situation: one equation in two variables (M
2
$1000
5
S). Together, however,
the two statements provide a system of two distinct equations in two variables, which
you can solve. Although there’s no need to find the solution, one way to do so is to simply
substitute (M
2
1000) for S in the equation derived from statement (1), then solve for M
:
0.75M
5
1.25~M
2
1000!
0.75M
5
1.25M
2
1250