Jamie can paint a wall in 54 minutes. Together, Connie and Jamie can paint the same wall in 36 minutes.
How long would it take Connie to paint the same wall by herself?
A. 18 minutes
B. 45 minutes
C. 90 minutes
D. 108 minutes
we know that
Jamie can paint a wall in 54 minutes
Jamie + Connie can paint a wall in 36 minutes
Applying proportion
Jamie pant 100% wall in 54 minutes
so
Find out the percentage in 36 minutes
100/54=x/36
x=(100/54)*36
x=66.67%
that means
that Connie paint 33.33% in 36 minutes
so
Applying proportion
36/33.33=x/100
x=(36/33.33)*100
x=108 minutes
answer is option D