Present$$ value: Mixed streams$$Consider the mixed streams of cash flows shown in the following$$ table, LOADING... $.$

a$.$Find the present value of each stream using a $77\%$ discount rate.

b$.$Compare the calculated present values and discuss them in light of the undiscounted cash flows totaling $$$$20$ comma $00020,000$ in each case. Is there some discount rate at which the present values of the two streams would be$$ equal?