I want to know how to get the correct answer and which one i

I want to know how to get the correct answer and which one is it?

Question 3 0/ 2 pts Calculate the allowable deflection, Span/240, for a 34 ft span. Correct Answer 1.7 in You Answered .14 in 1.1 in 85 in

Solution

Formula = Span/240

span = 34 ft = 34*12 inch =408 in.

deflection = 408/240

=1.7 inch