Question

Averageof 8number is48 if first three number are 50th, 52,and 56
, thenfindthesumof5number

Answer 1

hey frnd....
we know that
average of 8 no's = 48 = sum of them /8
48 = sum of 8 no's /8
384 = sum of 8 no's
now it's given that
three numbers are 50, 52, 56
so sum of 3 number = 50+52+56 = 158

now sum of rest 5 numbers = sum of 8 no's - sum of 3 no's
= 384 - 158
= 226

HOPE THIS HELP YOU ☺☺❤❤

Answer 2

Hi there!
Here's the answer

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$Average = \frac{Sum\: of\: Observations}{No.\: of\: Observations}$

Given,
No. of Observations = 8
Average = 48
Three observations given are : 50, 52, 56

Sum of 3 observations = 50+52+56 = 158
Sum of all Observations = sum of 3 Observations given + Sum of 5 Observations

Let sum of 5 observations be x
=> Sum of all observations = 158 + x

Substitute in formula
=> $48 = \frac{158+x}{8}$
=> 158 + x = 48×8
=> 158 + x = 384
=> x = 384 - 158
=> x = 226

•°• Sum of remaining 5 observations(or Numbers) is 226

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Hope it helps