Question

the average of 8 number is 56 three of them are 499, 57 and 72 calculate the average of the Other five number​

Answer 1

Answer:

-36

Step-by-step explanation:

given,

the three numbers are 499,57&72

let other 5 numbers be a,b,c,d,e

average of 8 numbers is 56

that means

(499+57+72+a+b+c+d+e)/8=56

628+a+b+c+d+e = 448

a+b+c+d+e = 448-628 = -180

hence,

sum of 5 numbers a+b+c+d+e = -180

average =

sum of observations/number of observations

= -180/5 = -36

therefore,

average of other 5 numbers is -36

I hope you understand