When n liters of fuel was added to a tank that was already 1/3 full, the tank was filled to 7/9 of its capacity. In terms of n, what is the capacity of the tank, in liters? A. 10/9 n B. 4/3 n C. 3/2 n D. 9/4 n E. 7/3n Correct Answer: D Full […]
If k is a positive integer, what is the remainder when (k + 2)(k^3 – k) is divided by 6? A. 0 B. 1 C. 2 D. 3 E. 4 Correct Answer: A Full explanation coming soon. Send us a note if you’d like this added to the express queue! You’ll find tons of practice
If x^2 − 2 < 0, which of the following specifies all the possible values of x? (A) 0 < x < 2 (B) 0 < x < √2 (C) −√2 < x < √2 (D) −2 < x < 0 (E) −2 < x < 2 Correct Answer: C Full explanation coming soon. Send
M and N are integers such that 6<M<N.What is the value of N? (1) The greatest common divisor of M and N is 6 (2) The least common multiple of M and N is 36 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but
M and N are integers such that 6<M<N.What is the value of N? Read the Full Article »
According to a certain estimate, the depth N(t), in centimeters, of the water in a certain tank at t hours past 2:00 in the morning is given by N(t)= -20(t – 5)^2 + 500 for 0 ≤ t ≤ 10. According to this estimate, at what time in the morning does the depth of the
