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The average (arithmetic mean) weight of 8 children is 100 pounds. No c
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29 Sep 2022, 02:46
29 Sep 2022, 02:46
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The average (arithmetic mean) weight of 8 children is 100 pounds. No child weighs exactly 100 pounds.
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 |
Number of children who weigh more than 100 pounds. |
Number of children who 100 weigh less than pounds. |
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.
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Re: The average (arithmetic mean) weight of 8 children is 100 pounds. No c
[#permalink]
11 Oct 2022, 03:44
11 Oct 2022, 03:44
Expert Reply
Some of weights=8*100=800
Now we do know just the above
However, the weights could be 8 of 50 or 7 of 50 and 250 or ANy combination that gives you 8 numbers which average is 800
D is the answer
Now we do know just the above
However, the weights could be 8 of 50 or 7 of 50 and 250 or ANy combination that gives you 8 numbers which average is 800
D is the answer
Re: The average (arithmetic mean) weight of 8 children is 100 pounds. No c
[#permalink]
11 Oct 2022, 03:58
11 Oct 2022, 03:58
1
Answer is D,
since any student can't be exactly 100, lets take the following example
98,98,98,98,102,102,102,102
here both are equal in number,
but lets take another scenario
1,98,98,98,102,102,301
simply there are n number of ways to divide 800 into 10 numbers
so answer D
since any student can't be exactly 100, lets take the following example
98,98,98,98,102,102,102,102
here both are equal in number,
but lets take another scenario
1,98,98,98,102,102,301
simply there are n number of ways to divide 800 into 10 numbers
so answer D
