4
There are 156 weeks in 3 yrs.
depends but 156 should be right
I believe 1000 weeks is 20 yrs. and 40 weeks just 8 weeks short of 21
1000 yrs
10 weeks and one day .
There are 43 full weeks in 10 months.
11 yrs
10 weeks
521.77457 weeks
52 weeks
It is 522 weeks.
the truck can be used for 7.5 yrs on highways and 10 yrs within a city