Question

Kathy stood on the middle rung of a ladder. she climbed up 44 ​rungs, moved down 33 ​rungs, and then climbed up 99 rungs. then she climbed up the remaining 33 rungs to the top of the ladder. how many rungs are there in the whole​ ladder?

Answer 1

Solution:

we are given that

Kathy stood on the middle rung of a ladder.

Since she climbed up 44 ​rungs, moved down 33 ​rungs...total up move of 44-33=11 rungs

Then climbed up 99 rungs. so a total of 11+99=110 rungs up.

Then she climbed up the remaining 33 rungs to the top of the ladder so total up move by 110+33=143 rungs

Since Kathy stood on the middle rung of a ladder so number of rungs=143x2=186

Now add the middle rungs.

Total number of rungs in the whole ladder=186+1=187