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The average (arithmetic mean) weight of 4 people is 85 kilog
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30 Aug 2018, 07:33
30 Aug 2018, 07:33
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Question Stats:
90% (00:48) correct
9% (00:44) wrong based on 74 sessions
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The average (arithmetic mean) weight of 4 people is 85 kilograms. Two of the people weigh 75 and 90 kilograms, respectively.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The average (arithmetic mean) weight of the other two people, in kilograms |
85 kilograms |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Re: The average (arithmetic mean) weight of 4 people is 85 kilog
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15 Oct 2019, 17:45
15 Oct 2019, 17:45
sandy wrote:
The average (arithmetic mean) weight of 4 people is 85 kilograms. Two of the people weigh 75 and 90 kilograms, respectively.
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
Quantity A |
Quantity B |
The average (arithmetic mean) weight of the other two people, in kilograms |
85 kilograms |
A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
4 people TOTAL avg is = 4*85 = 340 ; other two is 75 + 90 = 165; So, For finding the others two is: 340-165=175
For A; 185/2= 87.5
For B; Given that 85
Answer : A.
Re: The average (arithmetic mean) weight of 4 people is 85 kilog
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20 Oct 2019, 08:51
20 Oct 2019, 08:51
Helpful! Thanks
