A van travels 190 miles on 10 gallons of gas. Write and solve an equation to find how many gallons the van needs to travel 380 miles.
Bako is two times as old as he was five years ago. His mother was six times as he was then. His mother is thirty five years old now.
1. How old is Bako now.
2. How old was his mother when Bako was five years ago.
3. How old will Bako be when his mother is fifty years old.
4. How old was Bako's mother when he was born.
5. What is the difference between Bako's age and his mother's.