Question

the mean of the mark of 7 boys is 33 if one boy is excluded the mean of remaining mark is 24 find the mark of excluded boy ​

Answer 1

Answer:

85

Step-by-step explanation:

let the mark of excluded boy ​ = b

mean =   sum/ number of boys

( b + six boys sum)=7x33

( b + 24 x 6 )=7x33

b = 231 - 144 = 85