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Is the tallest child in Class A taller than tallest child in

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Is the tallest child in Class A taller than tallest child in

by AAPL » Mon Nov 12, 2018 5:12 am

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Is the tallest child in Class A is taller than tallest child in Class B?

1) The range of the heights of the children in Class A is greater than the range of the heights of the children in Class B.
2) The shortest child in Class A is shorter than the shortest child in Class B.

OA E.
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Source: — Data Sufficiency |

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by Brent@GMATPrepNow » Mon Nov 12, 2018 6:22 am

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AAPL wrote:Is the tallest child in Class A is taller than tallest child in Class B?

1) The range of the heights of the children in Class A is greater than the range of the heights of the children in Class B.
2) The shortest child in Class A is shorter than the shortest child in Class B.
Target question: Is the tallest child in Class A is taller than tallest child in Class B?
Jump to . . .

Statements 1 and 2 COMBINED
There are several scenarios that satisfy BOTH statements. Here are two:
Case a: Class A heights = {1, 50} and Class B heights = {2, 40}. In this case, the answer to the target question is YES, the tallest child in Class A IS taller than tallest child in Class B?
Case b: Class A heights = {1, 50} and Class B heights = {40, 60}. In this case, the answer to the target question is NO, the tallest child in Class A is NOT taller than tallest child in Class B?
Since we cannot answer the target question with certainty, the combined statements are NOT SUFFICIENT

Answer: E

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Brent
Brent Hanneson - Creator of GMATPrepNow.com
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