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Question

In its search for water a frog fell down into a 30m deep well. Its progress out of the well was very erratic. Each day it managed to climb up 3 m, but the following night , it slipped back 2 m. How many days did it take to get out of the well?

Solution
Verified by Toppr

Depth of well =30m

If each day frog managed to climb up 3m, but the following night, it slipped back 2m then,

Frog climb 1m in one day and it climb 27m in 27 days

On 28 th day it climb 3m and it get out of the well

So, total days it take to get out of the well =28days (Ans)

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