Shawana made a schedule for reading books during 4 weeks…
December 14, 2017
GMAT OFFICIAL GUIDE PS Shawana made a schedule for reading books during 4 weeks (28 days) of her summer vacation… Solution: We will list the number of days it …
If (1/3 + 1/4 + 1/5 + 1/6) = r (1/9…
December 14, 2017
GMAT OFFICIAL GUIDE PS Solution: We can simplify the given expression by multiplying by 180 and we have: 60 + 45 + 36 + 30 = 20r + 15r …
Al and Ben are drivers for SD Trucking Company. One snowy day, Ben…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Let t represent the time passed between the departure of Al (11:00 a.m.) and the retrieval of data by the dispatcher. Since Ben left …
Which of the following is greatest
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Let’s estimate √3, √5, √6, and √7. √3 ≈ 1.7 √5 ≈ 2.2 √6 ≈ 2.4 √7 ≈ 2.7 Thus: A) 10 x 1.7 …
Kevin invested $8,000 for one year at a simple annual interest…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: We’ll use the simple interest formula for both parts of this question: I = P x r x t , where I = interest, …
According to the table shown, the estimated number of home-schooled students…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: We can set up the following expression: (181,000 – 79,000)/79,000 x 100 Estimating, we have: (180,000 – 80,000)/80,000 x 100 100,000/80,000 x 100 10/8 …
Company Q plans to make a new product next year…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: Let’s let n = the number of units sold in order to break even. The variable cost per unit is 0.4 x 2 = …
In the xy-plane, the origin O is the midpoint of line segment PQ…
December 13, 2017
GMAT OFFICIAL GUIDE PS Solution: We can let the coordinates of Q be (x, y). Since the origin (0, 0) is the midpoint of PQ, we have: (r + …