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What is the value of the sum of a list of n odd integers?

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by VJesus12 » Wed Apr 18, 2018 2:33 am

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What is the value of the sum of a list of n odd integers?

(1) n = 8
(2) The square of the number of integers on the list is 64.

The OA is E.

I can't see how to solve this DS question. May someone helps me here? Thanks in advanced.
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Source: — Data Sufficiency |

by GMATGuruNY » Wed Apr 18, 2018 3:08 am
VJesus12 wrote:What is the value of the sum of a list of n odd integers?

(1) n = 8
(2) The square of the number of integers in the list is 64
Each statement indicates the same information -- that there are 8 odd integers.
Thus, both statements are satisfied by the following cases:
Case 1: 1, 1, 1, 1, 1, 1, 1, 1
Case 2: 1, 1, 1, 1, 1, 1, 1, 3
In Case 1, the sum of the 8 odd integers = 8.
In Case 2, the sum of the 8 odd integers = 10.
Since the sum can be different values, the two statements combined are INSUFFICIENT.

The correct answer is E.
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