Seed mixture X is 40 percent ryegrass and 60 percent bluegrass by weight; seed mixture Y is 25 percent ryegrass and 75 % fescue. If a mixture of X and Y contains 30% ryegrass, what percent of the weight of the mixture is X? GMAT Explanation, Video Solution, and More Practice! Seed mixture X is […]
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On a recent trip, Cindy drove her car 290 miles, rounded to the nearest 10 miles, and used 12 gallons of gasoline, rounded to the nearest gallon. The actual number of miles per gallon that Cindy’s car got on this trip must have been between A. 290/12.5 and 290/11.5 B. 295/12 and 285/11.5 C. 285/12
If x and y are positive integers such that y is a multiple of 5 and 3x + 4y = 200, then x must be a multiple of which of the following? GMAT Explanation If x and y are positive integers such that y is a multiple of 5 and 3x + 4y = 200,
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If n = (33)^43 + (43)^33 what is the units digit of n? GMAT Explanation, Video Solution, and More Practice! If n = (33)^43 + (43)^33 what is the units digit of n? A. 0 B. 2 C. 4 D. 6 E. 8 Units digits questions always come up in tutoring. They’re great because they’re
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The product of all the prime numbers less than 20 is closest to which of the following powers of 10? GMAT Explanation, Video Solution, and More Practice! The product of all the prime numbers less than 20 is closest to which of the following powers of 10? (A) 10^9 (B) 10^8 (C) 10^7 (D) 10^6
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