#### Answer

2 years

#### Work Step by Step

Number of years from age 2 to 17 inclusive = 16 years
Duration of watching television per week = 19 hrs 40 mins
= (60 x 19) + 40
= 1180 mins
Number of weeks in a year = 52
Therefore, duration of watching television in 16 years = (16 x 52 x 1180) mins
= 981760 mins
= (981760)/ (24 x 60) days
= 682 days
= 2 yrs (to the nearest tenth of the year)