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0.73 + a denotes 11/15. What is 900a - 3?

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by Max@Math Revolution » Tue Jun 30, 2020 12:21 am

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[GMAT math practice question]

0.73 + a denotes 11/15. What is 900a - 3?

A. 0
B. 3/5
C. 7/9
D.11/13
E. 1
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Re: 0.73 + a denotes 11/15. What is 900a - 3?

by Max@Math Revolution » Wed Jul 01, 2020 11:55 pm
=>

We have 73/100 + a = 11/15 or a = 11/15 – 73/100 = 220/300 – 219/300 = 1/300.

Thus, we have 900a – 3 = 900(1/300) – 3 = 3 – 3 = 0

Therefore, A is the correct answer.
Answer: A
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