Last visit was: 22 Apr 2026, 15:49 It is currently 22 Apr 2026, 15:49
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Caas
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sludge
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49..Doesn't looks like GMAT question though...
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Caas
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Hi

The OA is B.
The formula of n-term here is 2*n^2 - 1
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KillerSquirrel
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Juaz
49..Doesn't looks like GMAT question though...


I agree - doesn't look like a GMAT question.

1,7,17,31,x,71,97

looking for an avarege

(224+x)/7 = integer

since 224/7 = 32

x/7 has to be an integer

so the answer has to be (B) meaning 49

maybe not a GMAT question but nevertheless a good one.

:-D



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