Construction Planning and Management
A contractor has two options;(l) : Invest his money in project A or (II) : Invest his money in project B. If he decides to invest in A, for every rupee invested, he is assured of doubling his money in ten years. If he decides to invest in B, he is assured of making his money 1.5 times in 5 years. If the contractor values his money at 10% interest rate, he

should invest in project B
could invest in either of the two projects
should invest in project A
should invest in neither of the two projects

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Construction Planning and Management
Batching refers to

Controlling the total quantity at each batch
Controlling the quantity of each material into each batch
Adjusting the water to be added in each batch according to the moisture content of the materials being mixed in the batch
Weighing accurately, the quantity of each material for a job before mixing

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