Which of the following best approximates the value of q if 5^25+5^15=5^q ?	Choose the correct choice from the following options:
A) 40  B) 26  C) 25  D) 24  E) 20
We have: 5^25+5^15=5^q   ==&gt; because 5^15 &gt; 0 --&gt; 5^q MUST be equal or greater than 5^25 ==&gt;q MUST be equal or greater than 25   ==&gt; Option D and E are out immediately.   Divide both sides by 5^q and q &gt;= 25   We have:   5^(25-q) + 5^15/5^q = 1   Because q &gt;= 25 ==&gt;5^15/5^q = 0.0000xyz, that is very small,we can ignore it.   Thus, 5^(25-q) must be approximately 1   ==&gt; 25-q = 0 ==&gt; q is approximately 25   25 is the answer.
<result>C</result>
Which of the following best approximates the value of q if 5^25+5^15=5^q ?