A well is of 20 feet. A frog climbs up 5 feet , and slippers back 4 feet on every day.
Then in how many the frog can climb the well??

• every day it climbs 5ft and slides back 4 ft.
  so it goes 1 ft everyday.
  so it goes 15ft on 15 days.
  on the 16th day it climbs 5ft and reaches the top of the well.
  so total 16day it needed.
• 13 years agoHelpfull: Yes(26) No(0)
• 16...dis means dat d frog climbs 1 feet daily....on the 16th day he ll once again climb 5 feet which is total of 20 feet dat is d depth of well n he wont be slippin nemore...
• 13 years agoHelpfull: Yes(2) No(0)
• 16 days : because effective distance covered in one day=1 feet , therefore 15 days for 15 feet and on the last day frog will jump 5 feet and reach the top
• 13 years agoHelpfull: Yes(0) No(1)
• shudnt it be 17
  coz on the 16th day it reaches 20 feet..but shudnt he be reaching 21 to be effectively out of the well?
  
• 13 years agoHelpfull: Yes(0) No(1)