SOLUTION: Out of 6 numbers the average of first 5 numbers is 20 and the average of the last 5 numbers is 24. If last number is 36 what is the first number?
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Question 841981: Out of 6 numbers the average of first 5 numbers is 20 and the average of the last 5 numbers is 24. If last number is 36 what is the first number?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
(a+b+c+d+e)/5=20,
(b+c+d+e+36)/5=24
(b+c+d+e+36)=120
b+c+d+e=84
a+84=5*20
a=16
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