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If x is the sum of seven consecutive odd integers beginning with 3 an
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28 May 2021, 04:47
28 May 2021, 04:47
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Question Stats:
85% (00:59) correct
14% (01:33) wrong based on 7 sessions
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If x is the sum of seven consecutive odd integers beginning with 3 and y is the sum of seven consecutive odd integers beginning with 5, then y-x equals
(A) 2
(B) 7
(C) 8
(D) 12
(E) 14
(A) 2
(B) 7
(C) 8
(D) 12
(E) 14
Re: If x is the sum of seven consecutive odd integers beginning with 3 an
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28 May 2021, 07:46
28 May 2021, 07:46
1
\(x\) will contain the sum of : \(3 , 5 , 7 , 9 , 11 , 13 , 15\)
\(y\) will contain the sum of : \(5 , 7 , 9 , 11 , 13 , 15 , 17\)
Notice that \(5 , 7 , 9 , 11 , 13 , 15\) are common in both.
\(y - x = 17 - 3 = 14\)
Answer E
\(y\) will contain the sum of : \(5 , 7 , 9 , 11 , 13 , 15 , 17\)
Notice that \(5 , 7 , 9 , 11 , 13 , 15\) are common in both.
\(y - x = 17 - 3 = 14\)
Answer E
gmatclubot
Re: If x is the sum of seven consecutive odd integers beginning with 3 an [#permalink]
28 May 2021, 07:46
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