Must the company replace old truck? if so which of new, Ask an Expert

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Q1) For Mineral Mining Company problem, management thinking of leasing one of the following 2 new trucks to replace excising one:

Trunk type	Weight Capacity	Volume capacity	Additional Cost
Tr 22/12	20,000	960	100
Tr 20/13	18,000	1,080	200

Must the company replace old truck? If so which of new trunks must they use? Describe in detail.

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