the mean of 3 numbersis 7. if 2 numbers 7 and 8. find the third number.
karan2004:
6 is the third no.
Answers
Answered by
17
formula of mean is sum of observations upon total no of observatios!!
let the third no be x
(7+8+x)÷3=7
15+x=21
x=6
therefore third no is 6
let the third no be x
(7+8+x)÷3=7
15+x=21
x=6
therefore third no is 6
Answered by
6
Let the third number be x.
(x+7+8)/3 = 7
(x+15)/3 = 7
x+15 = 21
x = 6
The third number is 6
(x+7+8)/3 = 7
(x+15)/3 = 7
x+15 = 21
x = 6
The third number is 6
6 is the third no.
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