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Jungle Gym Print On the new jungle gym there are 4 ladders that lead to a landing. From the landing you can get to the big platform by climbing up either the rope or the fireman's pole How many different ways are there to get to the big platform?

Sagot :

Answer: 12 ways

Total number of ladder = 4

Yo can get to the platform either by climbing up the rope or fire mans hope

We have two options to get to the big platform

[tex]\begin{gathered} ^nP_r\text{ = }\frac{n!}{(n\text{ - r)!}} \\ ^4P_2\text{ = }\frac{4!}{(4\text{ - 2)!}} \\ =\text{ }\frac{4!}{2!} \\ \text{= }\frac{4\text{ x 3 x 2 x 1}}{2\text{ x 1}} \\ =\text{ 4 x 3} \\ \text{= 12 ways} \end{gathered}[/tex]

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