Running at their respective constant rates, machine X takes 2 days longer to produce w widgets than machines Y. At these rates, if the two machines together produce 5w/4 widgets in 3 days, how many days would it take machine X alone to produce 2w widgets. GMAT Explanation Running at their respective constant rates, machine […]
Running at their respective constant rates, machine X Read the Full Article »
Four extra-large sandwiches of exactly the same size were ordered for m students, where m > 4. Three of the sandwiches were evenly divided among the students. Since 4 students did not want any of the fourth sandwich, it was evenly divided among the remaining students. If Carol ate one piece from each of the
If y is the smallest positive integer such that 3,150 multiplied by y is the square of an integer, then y must be A. 2 B. 5 C. 6 D. 7 E. 14 Correct Answer: E Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find
If a(a + 2) = 24 and b(b + 2) = 24, where a ≠ b, then a + b = (A) −48 (B) −2 (C) 2 (D) 46 (E) 48 Correct Answer: B Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find tons of
If a(a + 2) = 24 and b(b + 2) = 24, where a ≠ b, then a + b = Read the Full Article »
A right circular cone is inscribed in a hemisphere so that the base of the cone coincides with the base of the hemisphere. What is the ratio of the height of the cone to the radius of the hemisphere? (A) √3 : 1 (B) 1 : 1 (C) 1/2 : 1 (D) √2 : 1
