Artificial intelligent assistant

How many steps monkey needs to reach water level? A monkey is at the topmost of the ladder ... (that is at first step) .and his aim is to reach at ninth step which is the water level...he performs this- he jumps forward three steps and then jumps backward 2 steps .. in how many jumps he would reach the water level ???.... I got by calculating that it is 30 steps but the answer is 11, I don't understand how it is ..

On forward jump and backward jump can make monkey go one step forward, then he needs 5 round which means 5 forward jumps and 5 backward jumps (10 jumps total) to the sixth step, then plus last jump to reach the 9th step.

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