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5. Consider the following set of projects at MARR =30%. 5.b what is the internal rate of return (IRR) of project A? (Do not add the % sign to your answer) 5.c what is the internal rate of return (IRR) of project B ? (Do not add the % sign to your answer) 5.d What is the internal rate of return (IRR) of project C? (Do not add the % sign to your answer)