Math

Arithmetic Easy 3

⏱ 10:00

600%
• The cost of a highway toll was \$0.75 in 2005. The following year the cost of the toll increased to \$1.00. By what percent did the toll increase?
• There are 5 CD racks in a room. Each rack contains at least 10 CDs but not more than 14 CDs. Which of the following could be the total number of CDs on all five racks?
• “All multiples of 3 are odd.” Which of the following numbers provides a counterexample to the statement above?
• If 30 percent of n is 72, what is 15 percent of 2n?
• If 5/8 of a number is 20, what is 1/8 of the number?
• If 1 pound of cheese costs \$1.50 and 2 pounds of beef costs \$4.00, then how much more expensive is 6 pounds of beef than 6 pounds of cheese?
• On a certain map that is drawn to scale, a distance of 50 miles is represented by 1 inch. How many inches on the map would represent a distance of 240 miles?
• If one of the angles in a triangle is 100°, what is the average (arithmetic mean) of the measures, in degrees, of the other two angles?
• If x% of 30 is 12, what is 4x% of 15?
• A machine can fill 200 boxes of cereal in 5 minutes. At this rate, how many hours will it takes this machine to fill 24,000 boxes of cereal?
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