Tlhwatlhwa ya khomphutha ya sekgoa ke R1000. Fa o bona theolelo ya 20%, o tla duela bokae?

Jack decides to visit a museum 150 miles from home.  He drives 75 mph there and back.  He spends 6 hours at the museum.  How long is he gone from home?
O tla bona theolelo ya 20/100 x R1000 = R<<20/100*1000=200>>200.
Ka jalo, o tla duela R1000 - R200 = R<<1000-200=800>>800.
#### 800

He drove a total of 150+150=<<150+150=300>>300 miles
So he drove for 300/75=<<300/75=4>>4 hours
That means he was gone from home for 4+6=<<4+6=10>>10 hours
#### 10