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Bob leaves point A and drives due west to point B.

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Source: — Data Sufficiency |

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Re: Bob leaves point A and drives due west to point B.

by Jay@ManhattanReview » Thu Jan 23, 2020 10:15 pm
AAPL wrote: ↑
Thu Jan 23, 2020 3:27 pm
 Princeton Review

Bob leaves point A and drives due west to point B. From point B, he drives due south to point C. How far is Bob from his original location?

1) Point A is 24 miles from point B.
2) Point B is 18 miles from point C.

OA C
Certainly, each statement is insufficient. Let's combine them.

From the given information, we know that points A, B and C for a right-angled triangle, in which /_B = 90º. We have to get the value of AC.

AC = √(AB^2 + BC^2) = √(24^2 + 18^2) = √900 = 30. Sufficient.

The correct answer: C

Hope this helps!

-Jay
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