Estimate the age of a bottled wine that has a tritium, 3H, content 60% that of freshly bottled wine.Tritium decays by beta decay and has a half-life of 12.3 yr. 
Definitions:
Investment Project
An undertaking that involves allocating resources like capital and labor to generate financial returns or achieve strategic goals.
Payback Method
A capital budgeting technique that estimates the time required to recoup the initial investment in a project.
Cash Flows
The inflows and outflows of cash and cash equivalents, representing the operating, investing, and financing activities of an entity.
Net Present Value
The difference between the present value of an investment project’s cash inflows and the present value of its cash outflows.
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