Arithmetic 6963

The arithmetic mean of two numbers is 142. One of the numbers is 16, greater than the second. Find out both numbers.
The arithmetic mean is a + b / 2

Correct answer:

a =  150
b =  134

Step-by-step explanation:


(a+b)/2=142
a = 16+b

a+b = 284
a-b = 16

Row 2 - Row 1 → Row 2
a+b = 284
-2b = -268


b = -268/-2 = 134
a = 284-b = 284-134 = 150

a = 150
b = 134

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