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, […]
If x and y are positive integers such that y Read the Full Article »
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
If n = (33)^43 + (43)^33 what is the units digit of n? Read the Full Article »
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
The product of all the prime numbers less than 20 Read the Full Article »
(0.99999999/1.0001) − (0.99999991)/1.0003 GMAT Explanation, Video Solution, and Additional Practice! (0.99999999/1.0001) − (0.99999991)/(1.0003) = (A) 10^(−8) (B) 3∗10^(−8) (C) 3∗10^(−4) (D) 2∗10^(−4) (E) 10^(−4) Give it a shot on your own and then you can reference the explanation and video solution. Good luck! This is a tough GMAT exponents puzzle from the GMAT Official Guide.
(0.99999999/1.0001)−(0.99999991)/1.0003 = Read the Full Article »
Working simultaneously at their respective constant rates, Machines A and B produce 800 nails in x hours. Working alone at its constant rate, Machine A produces 800 nails in y hours. In terms of x and y, how many hours does it take Machine B, working alone at its constant rate, to produce 800 nails?
Working simultaneously at their respective constant Read the Full Article »
