A monkey starts climbing a tree 20ft tall. Each hour it hops 3ft and slips back two ft. How much time would it take the monkey to reach the top?

• In 1 hour actual climbing = 3-2 = 1 ft.
  Upto first 17 hrs, monkey will climb 17 ft and after next 1 hr i.e. 18th hr, it will reach the top.
  Hence, total time required is 18 hrs.
• 3 years agoHelpfull: Yes(0) No(0)