Fire Fighter Mathematics Study Guide Rated A+

One gallon of water weighs 8.35 pounds so what does a 12-gallon water container weigh approximately? {Ans: A. 105 pounds B. 122 pounds C. 102 pounds D. 100 pounds Reasoning: To solve this problem, you must multiply the weight on one gallon of water by the number of gallons: 8.35 x 12 = 100.2, rounded to the nearest unit is 100 pounds. Choice D is correct}Firefighters took three tests that each required 45 minutes. If they then took one last test and all four tests required a total of 3.5 hours, how long did the last test take? {Ans: A. 1.25 hour B. 1 hour C. 3/4 hour D. 1 1/4 hour Reasoning: First, you must multiply 3 x 45 to determine the amount of time taken for the four exams. Then change 3.5 hours to minutes. Subtract one from the other and divide by 60 to reconvert to hours: 3 x 45 = 135 60 x 3.5 =210 210 - 135 = 75 ÷ 60 = 1.25 hour. Choice A is correct}If a firefighter worked 1/5 of a 40-hour week, how many hours were worked? {Ans: A. 15 B. 10 C. 8 D. 5 Reasoning: To