If a 90-day Treasury bill has a face value of $1000 and is sold in the market for $997. What is the YTM on the T-bill?

A) 0.3% B) 1.2% C) 1.5% D) 1.7%

Which of the following $1,000 face-value securities has the highest yield to maturity?

A) A 5 percent coupon bond with a price of $1,200 B) A 5 percent coupon bond with a price of $600 C) A 5 percent coupon bond with a price of $800

D) A 5 percent coupon bond with a price of $1,000

How to calculate? And all YTM formula plz. thanks