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Which of the following expresses the sum of the first 50 positive even
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17 Aug 2021, 02:41
17 Aug 2021, 02:41
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Which of the following expresses the sum of the first 50 positive even integers?
(A) (2)(50)
(B) (25)(100)
(C) (25)(102)
(D) (50)(100)
(E) (50)(102)
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
(A) (2)(50)
(B) (25)(100)
(C) (25)(102)
(D) (50)(100)
(E) (50)(102)
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
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Re: Which of the following expresses the sum of the first 50 positive even
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17 Aug 2021, 08:59
17 Aug 2021, 08:59
Carcass wrote:
Which of the following expresses the sum of the first 50 positive even integers?
(A) (2)(50)
(B) (25)(100)
(C) (25)(102)
(D) (50)(100)
(E) (50)(102)
(A) (2)(50)
(B) (25)(100)
(C) (25)(102)
(D) (50)(100)
(E) (50)(102)
Average of first \(n\) consecutive even integers = \((n + 1)\)
So, Sum of first \(n\) consecutive even integers = \(n(n + 1)\)
Sum = \(50(50 + 1) = 50(51) = 25(102)\)
Hence, option C
gmatclubot
Re: Which of the following expresses the sum of the first 50 positive even [#permalink]
17 Aug 2021, 08:59
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