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GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2508
Given Kudos: 1053
GPA: 3.39
If the average of p and 4p is 10, then p =
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07 Nov 2019, 22:35
07 Nov 2019, 22:35
Expert Reply
00:00
Question Stats:
91% (00:23) correct
8% (00:08) wrong based on 23 sessions
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If the average of \(p\) and \(4p\) is 10, then \(p =\)
(A) 1
(B) 3
(C) 4
(D) 10
(E) 18
(A) 1
(B) 3
(C) 4
(D) 10
(E) 18
Re: If the average of p and 4p is 10, then p =
[#permalink]
08 Nov 2019, 05:28
08 Nov 2019, 05:28
Expert Reply
20/5=4
C
Too simple for a GRE question.
Regards
C
Too simple for a GRE question.
Regards
Moderator
Joined: 02 Jan 2020
Status:GRE Quant Tutor
Posts: 1111
Given Kudos: 9
Location: India
Concentration: General Management
Schools: XLRI Jamshedpur, India - Class of 2014
GMAT 1: 700 Q51 V31
GPA: 2.8
WE:Engineering (Computer Software)
Re: If the average of p and 4p is 10, then p =
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04 Aug 2022, 23:36
04 Aug 2022, 23:36
1
Theory
The average of \(p\) and \(4p\) is 10
Average = \(\frac{Sum}{2}\) = \(\frac{p + 4p }{2}\) = \(\frac{5p}{2}\) = 10 (given)
=> 5p = 10*2 = 20
=> p = \(\frac{20}{5}\) = 4
So, Answer will be C.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
- ➡ Average = Sum of all the Values / Total Number of Values
The average of \(p\) and \(4p\) is 10
Average = \(\frac{Sum}{2}\) = \(\frac{p + 4p }{2}\) = \(\frac{5p}{2}\) = 10 (given)
=> 5p = 10*2 = 20
=> p = \(\frac{20}{5}\) = 4
So, Answer will be C.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
