2.5 quarts will be needed to paint the wall on the right.
What is area of rectangle?
The product of length and breadth.
Area of rectangle= length * breadth
Area of first wall = l * b
= 12*7
= 108 st. ft.
Area of 2nd wall
= l*b
=18*10
=180 sq. ft.
If 1.5 qt required to paint the 108 sq. ft. area
For 1 sq ft, paint would be need= 1.5/108
For 180 sq ft paint needed = 1.5*180/108
= 2.5 qt
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