epdf.pub_cbest-cliffs-test-prep13a9b242c7cb4125e6cca92d00a73d5a41681

Answers and Complete Explanations for Practice Test 3
To solve for x, divide both sides by 5.
5x 540
5 = 5
x = 108 minutes (divide by 60 to convert to hours and minutes)
108
60 = 1
48
60
= 1 hour 48minutes
47. B. Note that, on the graph, a 35-degree drop in temperature on the line correlates with a
20% attendance drop (the fourth slash up the graph).
48. E. So far, George has averaged 80% on each of three tests. Therefore, his total points
scored equals 3 times 80, or 240 points. In order to average 85% for four tests, George
needs a total point score of 4 times 85, or 340 points. Since George presently is 100 points
short of 340, he needs to get 100 points, or 100%, on the fourth test.
49. E. Note that 30% of 50 may be expressed several ways: .30 × 50; 3 ⁄10 × 50. Whichever way
it is expressed, it will still total 15. The only answer choice that does not total 15 is choice
E, which totals 166 2 ⁄3.
50. E. If you know the days when Thelma doesn’t read, then simply divide the number of
days she does read into the number of magazines for an average.
375