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*MEDAL WILL BE AWARDED*
The average of 5 numbers is 12. If a 6th number is added, what is the average?
 one year ago
 one year ago
*MEDAL WILL BE AWARDED* The average of 5 numbers is 12. If a 6th number is added, what is the average?
 one year ago
 one year ago

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ZeHanzBest ResponseYou've already chosen the best response.0
You'll have to know what number is added!
 one year ago

TedGBest ResponseYou've already chosen the best response.0
i was going to say, without the 6th number you cant do it
 one year ago

ZeHanzBest ResponseYou've already chosen the best response.0
Try it with an example: The average of 12, 12, 12, 12 and 12 (5 numbers) is ...12! Now add 12. Average is still 12. Instead, add 60. Average is 120/6=20. Makes a lot of difference.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
If "x" is your 6th number, your average is:\[\frac{ 60 + x }{ 6 }\]This gives a real and useful answer, but of necessity has to be left in the form of a formula.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
In case that Latex didn't come through: (x + 60) / 6
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
"60" is from: (x1 + x2 + x3 + x4 + x5)/5 = 12, so the sum is 60 for the first 5 numbers.
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
Making sense now, @iTiaax ?
 one year ago

iTiaaxBest ResponseYou've already chosen the best response.0
Yes :) Thank you so much
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
You're quite welcome!
 one year ago

tcarroll010Best ResponseYou've already chosen the best response.1
And thx for the recognition! @iTiaax ! Good luck in all of your studies!
 one year ago

iTiaaxBest ResponseYou've already chosen the best response.0
No problem :) Good luck to you too!
 one year ago
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