The quoted maturity of a bond, which is based on the following mortgages is closest to: Mortgage X: value $-$ $$1,900,000,$ time to maturity $-27$ years, interest rate $5\mathrm{.}5\%$ Mortgage Y: value $-$$$1,150,000,$ time to maturity $-25$ years, interest rate $5\%$ Mortgage Z: value $-$ $$1,850,000,$ time to maturity $23$ years, interest rate $6\%$

$25\mathrm{.}02$ years

$25\mathrm{.}55$ years

$25\mathrm{.}00$ years

$27\mathrm{.}00$ years