# If A = 25, Then What Is 2/5a?

Multiply 5 by 25= you'll get a 125 then divide 2 by 125
you'll get 0.016
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The normal precedence of operators requires that we interpret the expression 2/5A as (2/5)A, so if A=25, this is (2/5)(25) = (2)(25/5) = (2)(5) = 10.
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My brother said it is 62.50
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Oddman commented
Your brother was upside down, at best.
2 / (5*25)
2/125
0.016

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The lack of a space between the "5" and the "a" is significant; it is
not 2/5 of 25, rather it is 2/(5*a), which is quite different.

One
could also argue that the answer is unknown because we do not know if
A=a; those are two different variables, and a value is assigned to "A",
but not to "a."

Perhaps this is a "trick" question intended to emphasize the importance of attending to the details. Then again, it could be no more than another example of careless disregard for the details. "A" may not equal "a," but is the framer of the original question aware of that?

Who knows?

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