In the figure above, what is the value of z
March 29, 2017
GMAT OFFICIAL GUIDE DS Solution: We need to determine the value of z in the following diagram: Note that z is equal to the length of the rectangle and …
Author: Scott Woodbury-Stewart
The letters D, G, I, I , and T can be used to form 5-letter strings..
March 28, 2017
GMAT OFFICIAL GUIDE PS Solution: This is a permutation problem, because the order of the letters matters. Let’s first determine how many ways we can arrange the letters. Since …
On Saturday morning, Malachi will begin a camping vacation a…
March 28, 2017
GMAT OFFICIAL GUIDE PS Solution: Since we need to determine the probability that Malachi will return home at the end of the day on the following Monday, we must …
A certain experimental mathematics program was tried out in 2…
March 28, 2017
GMAT OFFICIAL GUIDE PS Solution: We are given that a certain experimental mathematics program was tried out in 2 classes in each of 32 elementary schools and involved 37 …
If there are fewer than 8 zeroes between the decimal point…
March 28, 2017
GMAT OFFICIAL GUIDE PS Solution: We are given that the decimal expansion of (t/1000)^4 has fewer than 8 zeroes between the decimal point and the first nonzero digit. We …
The probability that event M will not occur is 0.8 and the probability…
March 28, 2017
GMAT OFFICIAL GUIDE PS Solution: We are given that the probability that event M will not occur is 0.8 and the probability that event R will not occur is …
The product of two negative numbers is 160. If the lesser of the two…
March 27, 2017
GMAT OFFICIAL GUIDE PS Solution: We are given that the product of two negative numbers is 160 and that the lesser of the two numbers is 4 less than …
Last year Joe grew 1 inch and Sally grew 200 percent more than Joe…
March 27, 2017
GMAT OFFICIAL GUIDE PS Solution: We are given that last year Joe grew 1 inch and that Sally grew 200 percent more than Joe grew. This means Sally grew …