Construction Planning and Management
In the given figure, the network of a project represents

Activity of an excavation which starts at event No. 1 and ends at even No. 2
Activity of excavation which takes 8 units of time
None of these
Activity of an excavation of a footing

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

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