A company has a contract to build a canal to prevent flood in a province. It must dig 3 m wide, 2 m deep and 4 km long. 30 laborers are available with rate of each man of P500 per day where they will work for 8 hrs each day. One man can dig for 2.5 cu.m. per day. A digging machine may be rented at a cost of P10,000 a day for all the time it was in use or in transit. One day is required for transporting the machine each way. Travel cost would total P20,000. The machine operator will be paid P750 a day, including travel time of two days of the machine. If the machine is used, 3 laborers will be required with rate of each man of P500 per day including travel time of machine. The digging machine can excavate 1 cu.m. per 6 mins. All workers and machine rentals must be paid on a full 8-hour-day basis. Which is more economical from the two alternatives? Show your solution.

A company has a contract to build a canal to prevent flood in a province. It must dig 3 m wide, 2 m deep and 4 km long. 30 laborers are available with rate of each man of P500 per day where they will work for 8 hrs each day. One man can dig for 2.5 cu.m. per day. A digging machine may be rented at a cost of P10,000 a day for all the time it was in use or in transit. One day is required for transporting the machine each way. Travel cost would total P20,000. The machine operator will be paid P750 a day, including travel time of two days of the machine. If the machine is used, 3 laborers will be required with rate of each man of P500 per day including travel time of machine. The digging machine can excavate 1 cu.m. per 6 mins. All workers and machine rentals must be paid on a full 8-hour-day basis. Which is more economical from the two alternatives? Show your solution.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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