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If m is the average (arithmetic mean) of the first 20 positive multipl
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18 Aug 2021, 05:08
18 Aug 2021, 05:08
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Question Stats:
85% (01:17) correct
14% (03:53) wrong based on 14 sessions
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If m is the average (arithmetic mean) of the first 20 positive multiples of 5, what is the value of \(\frac{m}{5}\)?
(A) 10
(B) 10.25
(C) 10.5
(D) 11
(E) 50
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
(A) 10
(B) 10.25
(C) 10.5
(D) 11
(E) 50
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
If m is the average (arithmetic mean) of the first 20 positive multipl
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18 Aug 2021, 08:00
18 Aug 2021, 08:00
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\(m =\) avg of first \(20\) +ve multiples of \(5\).
\(m = \frac{10^{th} multiple + 11^{th} multiple}{2}\)
\(m = \frac{50+55}{2} = 52.5\)
\(\frac{m}{5} = \frac{52.5}{5} = 10.5\)
Answer C
\(m = \frac{10^{th} multiple + 11^{th} multiple}{2}\)
\(m = \frac{50+55}{2} = 52.5\)
\(\frac{m}{5} = \frac{52.5}{5} = 10.5\)
Answer C
gmatclubot
If m is the average (arithmetic mean) of the first 20 positive multipl [#permalink]
18 Aug 2021, 08:00
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