A $25 000, 6.5% bond redeemable at par with semi-annual coupons bought 10 years before maturity to

Question:

A $25 000, 6.5% bond redeemable at par with semi-annual coupons bought 10 years before to yield 7% compounded semi-annually is sold 4 years before at 99.25.
Find the gain or loss on the sale of the bonds without constructing a bond schedule.
Maturity
Maturity is the date on which the life of a transaction or financial instrument ends, after which it must either be renewed, or it will cease to exist. The term is commonly used for deposits, foreign exchange spot, and forward transactions, interest...