SSAT Math Question 107: Answer and Explanation
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Question: 107
11. In the fraction 
, if the value of z is doubled and the value of x is halved, the value of the fraction is
- A. multiplied by four.
- B. decreased by
. - C. increased by
. - D. doubled.
Correct Answer: E
Explanation:
The correct answer is (E). By doubling the denominator of a fraction, we actually divide it by 2. By halving one of the factors in the numerator, we also halve the value of the fraction. By doing both, we have actually divided the original value by 4. Plug in some values for x, y, and z, and try this.