Bianca worked for 12.5 hours last weekend. Celeste worked for twice that amount of time and McClain worked 8.5 hours less than Celeste. How many minutes did the 3 people work in total?
Bianca = 
<gadget id="calculator">12.5</gadget>
<output>12.5</output>
12.5 hours.
Celeste 2 * 12.5 = 
<gadget id="calculator">2*12.5</gadget>
<output>25</output>
25 hours.
McClain = 25 - 8.5 = 
<gadget id="calculator">25-8.5</gadget>
<output>16.5</output>
16.5 hours.
Total + 12.5 + 25 + 16.5 = 
<gadget id="calculator">+12.5+25+16.5</gadget>
<output>54</output>
54 hours
54 hours * 60 minutes = 
<gadget id="calculator">54*60</gadget>
<output>3_240</output>
3240 minutes.
Bianca, Celeste and McClain worked a total of 3240 minutes last weekend.

<result>3_240</result>