Home » GMAT » How many pencils did Ashley buy if she paid 93 dollars for the pencils and for 15 notebooks?
Ashley paid 5 dollars for 1 notebook and 1 pencil. If both prices were integers, how many pencils did Ashley buy if she paid 93 dollars for the pencils and for 15 notebooks?
A. 6.
B. 16.
C. 18.
D. 21.
E. 26.
Correct Answer: D
Explanation/Reference:
Explanation:
One notebook can cost 1, 2, 3 or 4 dollars. Subtract 15 times each price from 93, and check if what you get is divisible by 5 minus the price of the notebook. The number could be 24, 21 or 33. The correct answer is D.
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