<p>I don't know how to do this level 5 question (nor do i really understand what its describing)</p>

<p>1) The 6 cabins at a camp are arranged so that there is exactly 1 straight path between each 2 of them, but no 3 of them are on a straight path. What is the tottal number of such straight paths joining these cabins?</p>

<p>2) John and Paul can each weed 1/4 of their garden in an hour, and their father can weed 1/3 of the garden in an hour. If all three work together at their respective rates, how many hours will it take to weed the garden?</p>

<p>A) 1

B) 1.2

C) 1.25

D) 1.4

E) 1.7</p>

<p>3) Different positive four-digit integers are to be formed by using each of hte digits 5,6,7 and 8 just once in each integer. How many such integers can be formed if the digits 7 and 8 must be next to each other?

a) six b) eight c) twelve d) eighteen e) twenty-four</p>

<p>answers: 1) 15 2) B) 1.2 3) C -12</p>