SSAT Math Question 376: Answer and Explanation
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Question: 376
4. Which of the following gives the value, in cents, of a dimes, b quarters, and 6 pennies?
- A.
+ 1 - B.
+ 6 - C. 10a + 10b + 6
- D. 10a + 25b + 1
Correct Answer: E
Explanation:
E
As there are 10 cents in one dime, there are 10a cents in a dimes. As there are 25 cents in one quarter, there are 25b cents in b quarters. There are 6 cents in six pennies.
Plug in for a and b such as a = 2 and b = 3. As there are 10 cents in one dime, there are 20 cents in two dimes. As there are 25 cents in one quarter, there are 75 cents in three quarters. Add these, along with 6 cents for the six pennies, for 101 cents. Only choice (E) matches these results when the selected numbers are tested.