Question

More mathhhhh!!!!!!!

Answer 1

it will be 1/4 of 3 1/2
ie 1/4 * 7/2
=> 7/8
so option b ) 7/8 is correct

Answer 2

Time -Span of the movie = 3 1/2 hours long = 7/2 hours long. 
Lily turned the movie off 1/4 of the way through =  7/2 X 1/4 =7 / 8 hours.
So, time spent in watching the movie= 7/2 - 7/8
                                                             = 7/8 of an hour( so option B is correct)

hope this answer helped you