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Choose the correct option.
An elephant fell into a wall of depth 20mts.Everyday it climbs 4mts but at the end falls by 2mts.Find the number of days it would take for the elephant to get out of the wall
A10 days
B7 days
C9 days
D8 days
Answer: Option (Login/Signup)
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Solution: Net displacement of the elephant per day= 4-2=2mtr.
So if he climbs 8 days then he will cover 16m
On the 9th day when he will climb 4m then he will be out of the well.
Hence answer is 9 days.
Asked In ::
STEP-BY-STEP
Solution: Net displacement of the elephant per day= 4-2=2mtr.
So if he climbs 8 days then he will cover 16m
On the 9th day when he will climb 4m then he will be out of the well.
Hence answer is 9 days.
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Every day displacement is 4-2 = 2mtr.
it takes 10 days with fall of 2mte.
but on the 9th day, he came out of the wall.
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