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Magoosh
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Jack has 5 cats and 1 dog. If the dog’s weight is 3 times the average (arithmetic mean) weight of the cats, then the dog’s weight is what fraction of the total weight of all 6 animals?
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Magoosh
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If k is an odd integer, which of the following must be an even integer?
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Magoosh
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If$$\frac{1}{x} = 0.4$$, then $${1}\over{x+2} =$$
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Magoosh
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In a group of children, the average (arithmetic mean) weight of the boys is 60 pounds, and the average weight of the girls is 48 pounds. If the average weight of all of the children in the group is 50 pounds, what is the ratio of the number of boys to the number of girls?
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Magoosh
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If $$xy \neq 0$$ and 2x + 3y is equal to 175 percent of 8x, then x/y =
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Magoosh
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A division of a company consists of seven men and five women. If three of these twelve employees are randomly selected as representatives of the division, what is the probability that the representatives will consist of two females and one male?
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Magoosh
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If the ratio of the volume of cube A to the volume of cube B is 1 to 8, what is the ratio of the surface area of cube A to the surface area of cube B?
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Magoosh
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$$\frac{228}{494}$$=
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Magoosh
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O is the center of the semicircle. If ∠BCO=30°and BC =$$6\sqrt{3}$$ , what is the area of triangle ABO?
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Magoosh
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If 24 kilograms of flour are required to make 300 tarts, how many kilograms of flour are required to make 45 tarts?
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Magoosh
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x is betweenNote: Figure not drawn to scale
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Magoosh
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If$$ 8^{n+1} + 8^{n} = 36$$, then n =
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Magoosh
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If x = $$\frac{7}{9} - \frac{15}{18} + \frac{10}{12} then{ (1-x)}^2 =$$
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Magoosh
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0.25% =
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Magoosh
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Which of the following sets of numbers has the greatest standard deviation?
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Manhattan
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What is the average of $$\frac{1}{8},\frac{3}{8},\frac{1}{2}$$ ?
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Manhattan
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Two buses and a van were employed to transport a class of students on a field trip. $$\frac{3}{5}$$ of the class boarded the first bus. $$\frac{2}{3}$$ of the remaining students boarded the second bus, and the rest of the students boarded the van. When the second bus broke down,$$\frac{ 1}{2}$$ of the students on the second bus boarded the first bus. What fraction of the class was on board the first bus?
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Manhattan
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Jack pours water into a bucket until the bucket is filled to 60% of its capacity. Jill then fills the bucket to capacity by pouring an additional $$\frac{2}{3}$$ of a gallon of water into the bucket. What is the capacity of the bucket, in gallons?
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Magoosh
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When a certain coin is flipped, the probability of heads is 0.5. If the coin is flipped 6 times, what is the probability that there are exactly 3 heads?
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Magoosh
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In the coordinate plane, rectangular region R has vertices at (0,0), (0,3), (4,3), and (4,0). If a point in region R is randomly selected, what is the probability that the point's y-coordinate will be greater than its x-coordinate?
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