An investor purchased a $182-$day, $$25000$ Province of Ontario bill on its date of issue for $$24610$ and sold it $60$ days later for $$24750.$ a$.$ What simple interest rate of return was implied in the original price? b$.$ What simple interest rate of return did the market require on the sale rate? c$.$ What simple interest rate of return did the original investor actually realize during the $60-$day holding period?