Juan is climbing a ladder. He begins on the first rung, climbs up four rungs, but then slides down two rungs. How many net rungs did he climb?

A
2

B
3

C
4

D
5

A) 2 rungs.

Step-by-step explanation:

Let X be the starting point. The new point after climbing 4 rungs is:

-The new distance after sliding down two rungs is:

-The net climb is calculated by subtracting the latter from the prior:

Hence, the net climb is 2 rungs.

560

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