Working together, two ants named Aran and Beatrice can build an ant hill in 10 hours. Aran and Charlie can build the ant hill in
12 hours. Beatrice and Charlie can build the ant hill in 15 hours. How long, in hours, will it take to build the ant hill if Aran, Beatrice, and Charlie work together?
<span>Equations: g + b + 0 = 1500 g + 0 + r = 750 g + b + r = 2000 ============ </span><span>g = 250 b = 1250 r = 500 ============ Happy Valentines :)</span>
