Question

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

Answer 1

Answer:

A) 2 rungs.

Step-by-step explanation:

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

$x+4$

-The new distance after sliding down two rungs is:

$=(x+4)-2\\\\=x+2$

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

$Net \ climb=(x+4)-(x+2)\\\\=2$

Hence, the net climb is 2 rungs.