Average of two numbers is 6.5 and square root of their product is 6. What are the numbers?
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Answer:
Let the numbers be a,b
(a+b)/2=6.5
a+b=13
sqrt(ab)=6
ab=36
(a-b)^2=(a+b)^2-4ab
=169-144
=25
a-b=5
SO....a=9, b=4
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