Question 271110
(1/4 + 1/4)(1) + (1/4 + 1/4 + 1/x)(0.5)=1

1/2 + [1/2 + 1/x](0.5)=1

[1/2 + 1/x](0.5)=1/2

1/2 + (1/x)=1

1/x = 1/2

x=2 hrs