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# The average weight of 36 students in a class is 62 kgs. If the weight

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Math Expert
Joined: 02 Sep 2009
Posts: 53748
The average weight of 36 students in a class is 62 kgs. If the weight  [#permalink]

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21 Feb 2019, 01:01
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Difficulty:

25% (medium)

Question Stats:

82% (01:36) correct 18% (01:06) wrong based on 22 sessions

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The average weight of 36students in a class is 62 kgs. If the weight of the teacher is also included the average becomes 62.5 kgs. Find the weight of the teacher.

A. 80
B. 80.25
C. 80.5
D. 80.75
E. 81

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Joined: 23 Jun 2018
Posts: 31
Location: India
WE: Sales (Mutual Funds and Brokerage)
Re: The average weight of 36 students in a class is 62 kgs. If the weight  [#permalink]

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21 Feb 2019, 03:06
T= 37*62.5-(36*62)=80.5
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Krunali Gokani

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Joined: 18 Aug 2017
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Location: India
Concentration: Sustainability, Marketing
GPA: 4
WE: Marketing (Energy and Utilities)
Re: The average weight of 36 students in a class is 62 kgs. If the weight  [#permalink]

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21 Feb 2019, 10:49
Bunuel wrote:
The average weight of 36students in a class is 62 kgs. If the weight of the teacher is also included the average becomes 62.5 kgs. Find the weight of the teacher.

A. 80
B. 80.25
C. 80.5
D. 80.75
E. 81

36*62+x = 62.5* 37
x = 80.5
IMO C
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Re: The average weight of 36 students in a class is 62 kgs. If the weight   [#permalink] 21 Feb 2019, 10:49
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