1.A few books are laid out on a desk in a library. Two are hydraulics, three are mathematics, one is design and four are surveying. Arnolfo selects a hydraulics book and Rommel selects a surveying book. Both Arnolfo and Rommel took their selected books on their respected offices. If Jeson then selects a book at random, what is the probability that he selects a hydraulics book?

2.In a bowling game, how many ways can the 10 pins fall in the first throw?Required to answer. Single choice.

3.Louie and Bugs belong to the same baseball team. After so many swings, Louie recorded 8 hits out of 20 times at bat, while Bugs had 6 hits out of 16 times. Judging on their present performance, what is the probability that both will get a hit next at bat?

4. to make a ham and cheese sandwich you are given a choice of 3 kinds of ham, 5 kinds of cheese, and 2 kinds of bred. how many different sandwiches can you make?Required to answer. Single choice.