Claire has a total of 80 pets consisting of gerbils and hamsters only. One-quarter of the gerbils are male, and one-third of the hamsters are male. If there are 25 males altogether, how many gerbils does Claire have?  Choose the correct option.
A) 39 B) 50 C) 54 D) 57 E) 36
G+H =80 ...1 ; G/4 +H/3 =25 ....2 OR 3G +4H =25*12= 
<gadget id="calculator">25*12</gadget>
<output>300</output>
300   G=80-H OR 3(80-H) +4H =300 H = 300-240= 
<gadget id="calculator">300-240</gadget>
<output>60</output>
60 TH36N G= 96-60= 
<gadget id="calculator">96-60</gadget>
<output>36</output>
36   36
<result>E</result>
Claire has a total of 80 pets consisting of gerbils and hamsters only. One-quarter of the gerbils are male, and one-third of the hamsters are male. If there are 25 males altogether, how many gerbils does Claire have?