Lagoon island is populated by alligators. Half the alligators are male. The rest are female. Among the females, 40% are juveniles. There are 15 adult females. How many male alligators are there?
60% of female alligators are adults because 100 - 40 = 
<gadget id="calculator">100-40</gadget>
<output>60</output>
60.
There are 25 female alligators because 15 / .6 = 
<gadget id="calculator">15/.6</gadget>
<output>25</output>
25.
There are 50 alligators in total because 25 / .5 = 
<gadget id="calculator">25/.5</gadget>
<output>50</output>
50.
There are 25 male alligators because 50 / 2 = 
<gadget id="calculator">50/2</gadget>
<output>25</output>
25.

<result>25</result>