An investor bought a $500,000 face Government of Ontario Treasury Bill 355 days before maturity at an interest rate of 3.9% p.a. She sold the T-bill 219 days later at a rate of 3.45% p.a.

Determine: (3 marks)

a. The amount she paid for the T-bill.

b. The amount she sold the T-bill for

c. The rate of return (R) she realized on her investment over the 219 days.