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Q.

A deep well has steps inside it.  A monkey is sitting on the topmost step (i.e., the first step).  The water level is at the ninth step.  If the monkey jumps 3 steps down and then jumps back 2 steps up, how many jumps does it have to make to reach the water level?

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a

11

b

7

c

9

d

5

answer is A.

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Detailed Solution

Monkey is sitting on the first step
1+3−2+3−2+3−2+3−2+3−2+3⇒11 steps 

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