Fire fighter Mathematics Exam Review with 100% Correct Answers

Fire fighter Mathematics Exam Review with 100% Correct Answers Change the following fraction to a percentage: 2/25 *Ans* A. 0.18% B. 2.5% C. 8% D. 25% Reasoning: To solve the problem, multiply the fraction by 100. 2/25 = 200/25. Then divide the fraction's bottom number into the top number. 200 ÷ 25 = 8. Add the percent sign: 2/25 = 8%. Choice C is correct If a pile of fire wood is 6 feet long, 4 feet high and 2 feet wide how many cubic feet is it? *Ans* A. 96 cubic feet B. 18 cubic feet C. 48 cubic feet D. 46 cubic feet Reasoning: To calculate how many cubic feet of water can the tank hold, you would multiply 6 x 4 x 2 = 48 cubic feet. Answer C is correct Flooring in an older house has three layers of plywood. Each layer is a different thickness. One layer is 1/2 inch thick, a second layer is 3/8 inch thick and the total thickness is 1 3/4 inches. What is the width of the third layer? *Ans* A. 7/8 inch B. 1/2 inch C. 3/8 inch D. 7/16 inch Reasoning: First, find the common denominator = 8. Then convert all fractions: 1/2 = 4/8, 3/8 = 3/8, 1 3/4 = 14/8. Add the first and second layer and then subtract the sum from the total thickness: 4/8 + 3/8 = 7/8. 14/8 - 7/8 = 7/8 inch. Choice A is correct Water container A holds 150 gallons of water when full. Water container B, holds 270 gallons of water when full. If water container A is only 3/4 full and water container B is only 1/3 full, how many more gallons of water are needed to fill both container to their limit? *Ans* A. 225 gallons B. 217.5 gallons C. 250 gallons D. 215.5 gallon