SOLUTION: the average height of a class of 24 boys is 5'2''.by the admission of one new boy boy the average decreases by 1/5''.Find the height of the new boy?

Question 1084323: the average height of a class of 24 boys is 5'2''.by the admission of one new boy boy the average decreases by 1/5''.Find the height of the new boy?

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
the average height of a class of 24 boys is 5'2''.
by the admission of one new boy boy the average decreases by 1/5''.Find the height of the new boy?
:
let's do this in inches: 5" 2" = 62". 1/5 = .2 inches
let x = height of the new boy in inches
= 62 - .2
= 61.8
multiply both sides by 25
1488 + x = 1545
x = 1545 - 1488
x = 57" or 4' 9" is the new boy's height

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