A bakery opened yesterday with its daily supply of 40 dozen…
June 26, 2015
GMAT OFFICIAL GUIDE PS Solution: The bakery began the day with 40 dozen rolls. Half of the rolls were sold by noon, so we know by noon we had …
Author: Scott Woodbury-Stewart
0.1+0.1^2+0.1^3 =
June 26, 2015
GMAT OFFICIAL GUIDE PS Solution: This problem can be easily solved by following the order of operations. Let’s tackle the exponents first. 0.1^2 = 0.1 x 0.1 = 0.01 …
At a supermarket, John spent 1/2 of his money on fresh fruit
June 26, 2015
GMAT OFFICIAL GUIDE PS Solution: Let’s let T = total number of dollars spent at the supermarket. With this variable we can set up an equation and determine T. …
A rectangular garden is to be twice as long as it is wide…
June 26, 2015
GMAT OFFICIAL GUIDE PS Solution: We first draw a diagram of our garden. The length of the rectangular garden is twice as long is it is wide. Thus, we …
Which of the following equations is NOT equivalent to…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: To solve this question, we start by FOILing the right hand side of the given equation. 10y^2 = (x+2)(x-2) 10y^2 = x^2 – 4 …
If n is a positive integer, then n(n+1)(n+2) is…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: The problem is easiest to solve by substituting numbers for n. We’ll try an odd number first and then an even number. For an …
If a, b, and c are consecutive positive integers and a < b < c…
May 21, 2015
GMAT OFFICIAL GUIDE PS Solution: The easiest way to solve the problem is to plug in some real numbers for a, b, and c. Since we know they are …
(1/2)⁻³ × (1/4)⁻⁴ × (1/16)⁻¹…
May 21, 2015
GMAT OFFICIAL GUIDE PS – Solution: We start by using the negative exponent rule. When a fractional base is raised to a negative exponent, we can rewrite the expression …