Question

According to statistics, a person will devote 34 years to sleeping and watching TV. The number of years sleeping will exceed the number of years watching TV by 20. Over the lifetime, how many
wears will the person spend on each of these activities?

Answer 1

Let the number of years of watching TV be

x

.

The number of years sleeping exceeds the number of years watching TV by

18

. This means that the number of years sleeping is higher than the number of years watching TV by

18

and can be represented by

（x+18).

The total time is 34

years. So we can form the following equation and solve for the required values:

x+(x+18)=34

x+x＋18=34

2x=34-18

2x=16

x=16/2

x=8

Thus, the number of years watching is 8

and the number of years sleeping is

8+18=26

.