SOLUTION: How many days will it take for your T-bill to increase in value from $875 to $900 if it earns a simple interest rate of 4.9%?

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Question 1142639: How many days will it take for your T-bill to increase in value from $875 to $900 if it earns a simple interest rate of 4.9%?
Answer by ikleyn(52752) About Me  (Show Source):
You can put this solution on YOUR website!
.

            This problem was formulated and posed  INACCURATELY.

            To be accurate,  it must say directly and explicitly,  that $875 is the starting  (original)  value of the T-bill.

            Starting and original value - and not some intermediate value.


            After this editing,  the solution of the problem is as follows.


900 = 875+%2B+%280.049%2F365%29%2A875%2At     (where 365 is the number of days in a year),


t = %28900+-+875%29%2F%28%280.049%2F365%29%2A875%29 = 212.83 days.


ANSWER.  213 days.