Industrial Engineering and Production Management
At the break-even point,

Total cost is equal to sales revenue
Total cost is less than the sales revenue
Fixed cost is equal to variable cost
Total cost is more than the sales revenue

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Industrial Engineering and Production Management
The important file in making a PERT is

An event can't be accomplished until activities leading to it are completed
Length of arrow has nothing to do with time
All of the these
No activity from any event can be started from preceding event till it is completed

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