Question

Anna painted 1/6 of a wall, Eric painted 1/5 of the wall, and Meadow painted 1/4 of the wall. There are now 3,910 square feet left to paint. How many square feet did Anna paint?

Answer 1

Explanation:

remaining wall=x-(x/6+ x/5+x/4)

(L.C.M. of 6,5,4=60)

`=x-((10+12+15)x)/(60) \\=(60x-37x)/(60)=(23x)/(60) \\Now ~(23x)/(60)=3910\\x=3910*(60)/(23) =170*60=10200\\they painted=10,200-3910=6290~sq~ft`

Anna~painted=10200*\frac{1}{6}=1700~sq~ft.

Answer 2

6 feet

Explanation: