Math

Arithmetic Medium 1

⏱ 10:00

600%
• -2, 4, -8. . . How many of the first 139 terms of this sequence are negative
• A certain cake recipe states that the cake should be baked in a pan 8 inches in diameter. If Naziba wants to use the recipe to make a cake of the same depth but 12 inches in diameter, by what factor should she multiply the recipe ingredients?
• Which of the following is equal to ¼ of 0.01%?
• If the sales tax on an appliance priced at Tk.300 is between 5% and 8%, then the cost of the appliance could be?
• The cost of a pack of batteries, after a 5% tax, is \$8.40. What was the price before tax?
• Sadia had three boxes of pencils, each of which contained y pencils. She distributed these pencils by giving one to each student in her class, and had 9 pencils left over. If there are 21 students in Sadia’s class, what is y
• If the average (arithmetic mean) of 4 and w is equal to the average of 2, 8, and w, what is the value of w
• If pens cost \$3 each and binders cost \$2 each, which of the following represents the cost, in dollars, of p pens and b binders?
• A theater purchases \$500 worth of Sticky Bears and Chocolate Bombs. Each bag of Sticky Bears costs \$1.50 and each bag of Chocolate Bombs costs \$1.00. If a total of 400 bags of candy were purchased, how many bags of Chocolate Bombs did the theater buy?
• Nuzhat uses air-conditioning year round and spends, on average, \$125 per month to cool her apartment. A new energy-efficient air conditioning system would cost her \$3,000 to install and only \$25 per month thereafter to cool the apartment. If she installs the new system, how many months will it take for her total savings in cooling costs to equal the cost of the system?
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