If a sphere with radius r is inscribed in a cube…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Since the sphere is inscribed in the cube, the length of an edge of the cube = the diameter of the sphere. Recall that …
The quotient when a certain number is divided by 2/3 is 9/2…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Recall that a quotient is the result of a division problem. We can create the following equation in which x = the number we’re …
In the figure shown, AC = 2 and BD = DC = 1…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Since AC = 2 and DC = 1, AD must be 1. Since BD = 1, this makes triangle ABD an isosceles triangle with …
Cheryl purchased 5 identical hollow pine doors and 6 identical solid oak doors…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Since the regular price of each hollow pine door = 40 dollars, the regular price of each solid oak door is (2)(4) = 80 …
During a certain time period, Car X traveled north…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Since the car has a constant rate of 1 mile per minute, we can let r = the rate of the car in miles …
Abdul, Barb, and Carlos all live on the same straight road…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Since the school is 4 miles from Carlos’s house, and Barb’s house is halfway between the school and Carlos’s house, Barb’s house is 2 …
If 1 < x < y < z, which of the following has the greatest value
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: We can let x = 2, y = 3, and z = 4, and we have: A) z(x+1) 4(3) = 12 B) z(y+1) 4(4) …
125% of 5…
December 13, 2017
GMAT OFFICIAL GUIDE P Solution: 125% of 5 is 1.25 x 5 = 6.25. Answer: E