Problem Solving

In a certain brick wall, each row of bricks above the bottom row contains one less brick than the row just below it. If there are 5 rows in all and a total of 75 bricks in the wall, how many bricks does the bottom row contain ?

During the first week of September, a shoe retailer sold 10 pairs of a certain style of oxfords at $35apair.If,duringthesecondweekofSeptember,15pairsweresoldatthesalepriceof$ 27.50 a pair, by what amount did the revenue from weekly sales of these oxfords increase during the second week?

During a car trip, Maria stopped to rest after she traveled 1/2 of the total distance to her destination. she stopped again after she traveled 1/4 of the distance remaining between her first stop and her destination, and then she drove the remaining 120 miles to her detination. What was the total distance, in miles from Maria's starting point to her destination?

gmat.gif [ 6.54 KiB | Viewed 20649 times ] The table above shows the results of a recent school board election in which the candidate with the higher total number of votes from the five districts was declared the winner. Which district had the greatest number of votes for the winner?

The cost of picture frame M is $10.00lessthan3timesthecostofpictureframeN.IfthecostofframeMis$50.00, what is the cost of frame N ?

Which of the following Equation is NOT equivalent to 25x^2 = y^2 - 4?

Marion rented a car for $18.00plus$0.10 per mile driven. Craig rented a car for $25.00plus$0.05 per mile driven. If each drove d miles and each was charged exactly the same amount for the rental, then d equals

Which of the following equations has a root in common with x 2 − 6 x + 5 = 0 ?

If the length and width of a rectangular garden plot were each increased by 20 percent, what would be the percent increase in the area of the plot?

If a certain sample of data has a mean of 20.0 and a standard deviation of 3.0, which of the following values is more than 2.5 standard deviations from the mean?

If a compact disc that usually sells for 12.95$isonsalefor9.95$, then the percent decrease in price is closest to?

Which of the following CANNOT be the greatest common divisor of two positive integers x and y?

A $500investmentanda$1,500 investment have a combined yearly return of 8.5 percent of the total of the two investments. If the $500investmenthasayearlyreturnof7percent,whatpercentyearlyreturndoesthe$1 ,500 investment have?

On the number line above, the segment from 0 to 1 has been divided into fifths, as indicated by the large tick marks, and also into sevenths, as indicated by the small tick marks. What is the LEAST possible distance between any two of the tick marks?

If x y = 2 3 , then x − y x ?

The table above shows the amount of waste material, in tons, recycled by each of five counties in a single year and the amount of waste material, also in tons, that was disposed of in landfills by the five counties in that year. Which county had the lowest ratio of waste material disposed of to waste material recycled in the year reported in the table?

2 3 5 − 1 2 3 2 3 − 3 5

How many two-element subsets of {1, 2, 3, 4} are there that do not contain the pair of elements 2 and 4?

If y = (x – 5) 2 + (x + 1) 2 – 6 , then y is least when x =

The number of coronary-bypass operations performed in the United States increased from 13,000 in 1970 to 191,000 in 1983. What was the approidmate percent increase in the number of coronary-bypass operations from 1970 to 1983 ?