2 years ago

If 1/a + 1/b =1/c and ab=c,what is the average of a and b?

1 answer:

4 0

If we solve the left side of the given equation,
1/a + 1/b = 1/c
we get an answer of,
b+a / ab = 1/c
Since ab = c, we can conclude that b + a is 1. The average of these two numbers is equal to there sum divided by 2. The answer is therefore equal to 0.5.

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