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List L: 2, x, y List M: 1, 2, 3, x, y 14. If the average (ar
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22 Nov 2017, 12:13
22 Nov 2017, 12:13
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List L: 2, x, y
List M: 1, 2, 3, x, y .
If the average (arithmetic mean) of the 3 numbers in list L is \(\frac{10}{3}\), what is the average of the 5 numbers in list M ?
Give your answer as a fraction.
List M: 1, 2, 3, x, y .
If the average (arithmetic mean) of the 3 numbers in list L is \(\frac{10}{3}\), what is the average of the 5 numbers in list M ?
Give your answer as a fraction.
Show: :: OA
14/5
Re: List L: 2, x, y List M: 1, 2, 3, x, y 14. If the average (ar
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22 Nov 2017, 12:27
22 Nov 2017, 12:27
1
Expert Reply
Explanation
List L is = to \(\frac{2+x+y}{3}=\frac{10}{3}\). After cross multiply we do have x+y=8
List M is = to \(\frac{1+2+3+8}{5}\) (because we do already know that x+y=8). Indeed, \(\frac{14}{5}\)
List L is = to \(\frac{2+x+y}{3}=\frac{10}{3}\). After cross multiply we do have x+y=8
List M is = to \(\frac{1+2+3+8}{5}\) (because we do already know that x+y=8). Indeed, \(\frac{14}{5}\)
Re: List L: 2, x, y List M: 1, 2, 3, x, y 14. If the average (ar
[#permalink]
24 Feb 2022, 09:41
24 Feb 2022, 09:41
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