Bunuel wrote:

The sum of seven consecutive integers is equal to 7. What is the average of the greatest and least terms in the sequence?

(A) 7

(B) 4

(C) 2

(D) 1

(E) -2

Sum of 7 consecutive integers is 7. But if you try to add numbers such as 1, 2, 3,... the sum will be much higher. Hence, there must be some negative integers to cancel off some positive integers and get a sum as low as 7.

A little bit of thought will show that the integers must be -2, -1, 0, 1, 2, 3, 4

So sum = 3+4 = 7

Average of least and greatest numbers = (-2 + 4)/2 = 1

Answer (D)

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Karishma

Veritas Prep GMAT Instructor

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