the second one is incorrect its not 30 years please tell me the right answer

Bars to maturity. How long is it to maturity for the following bonds? 0 Par Value $1,000.00 $1,000.00 $5,000.00 $5,000.00 Coupon Rate 8% 6% 9% 12% Years to Maturity ? ? ? ? Yield to Maturity 8.7713% 7.7038% 8.1838% 16.0938% Price $950.00 $850.00 $5,400.01 $4,300.00 Coupon Frequency annual semiannual quarterly monthly a. How long is it to maturity for the following bond? (Round to the nearest whole number.) Coupon Years to Yield to Par Value Rate Maturity Maturity Price $1,000.00 8% 10 years 8.7713% $950.00 b. How long is it to maturity for the following bond? (Round to the nearest whole number.) Coupon Frequency annual Coupon Rate 6% Years to Maturity Par Value $1,000.00 Yield to Maturity 7.7038% Price $850.00 Coupon Frequency semiannual 30 years