Question

A 64 foot rectangular segment of a support beam for a bridge is divided into 3 parts whose lengths have the ratio of 3:5:8 what is the length of the longest part ?

Answer 1

32 feet

Explanation:

The total of ratio units is 3+5+8 = 16. Of those, the longest part is 8/16 = 1/2 of the total length. That is (1/2)·64 ft = 32 ft.

The longest part is 32 feet.