A 1500 foot long trench is to be excavated with a power hoe to an average depth of 8 FT. The base width of the of the trench is 4 Feet. The sides of the trench are vertical for the bottom 5 Feet. The top 3 FT. of the trench banks are sloped at a 1 To 1. The Power Hoe can Excavate 35 CY. Per Hour. How many Hrs. Will it take to excavate the trench?

A 1500 foot long trench is to be excavated with a power hoe to an average depth of 8 FT. The base width of the of the trench is 4 Feet. The sides of the trench are vertical for the bottom 5 Feet. The top 3 FT. of the trench banks are sloped at a 1 To 1. The Power Hoe can Excavate 35 CY. Per Hour. How many Hrs. Will it take to excavate the trench?