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Re: Beth's bank charges a service fee on a regular checking account for each month in which the balance on the account

Beth's bank charges a service fee on a regular checking account for each month in which the balance on the account falls below $100 at any time during the month. Did the bank charge a service fee on Beth's regular checking account last month? (1) During last month, a total of $1,000 was withdrawn f...


Re: What is the value of x ?

What is the value of x ? (1) y - x = y - 6 (2) x + 2y = 10 OA A Source: GMAT Prep Target question : What is the value of x ? Statement 1 : y - x = y - 6 Note: In most cases, there are infinitely many solutions to a linear equation with two variables. However, in this case, one of the variables canc...

by [email protected]

Mon Dec 06, 2021 6:34 am
Forum: Data Sufficiency
Topic: What is the value of x ?
Replies: 1
Views: 51

Re: If the average of ten numbers is 10, then which of the following could be the standard deviation of the ten numbers?

If the average of ten numbers is 10, then which of the following could be the standard deviation of the ten numbers? I. 0 II. 10 III. 20 A. I only B. I and II C. I and III D. II and III E. I, II, and III OA E Source: Princeton Review First recognize that, if all 10 numbers are 10 to get the set {10...


Re: The sequence of four numbers \(a_1, a_2, a_3\) and \(a_4\) is such that each number after the first is \(a_1-1\) gre

The sequence of four numbers \(a_1, a_2, a_3\) and \(a_4\) is such that each number after the first is \(a_1-1\) greater than the preceding number. What is the value of \(a_1?\) (1) \(a_2=15\) (2) \(a_4=29\) Answer: D Source: GMAT Prep Given : The sequence of four numbers a1, a2, a3 and a4 is such ...


Re: Is the integer \(n\) even?

Is the integer \(n\) even? (1) \(n - 5\) is an odd integer. (2) \(\dfrac{n}5\) is an even integer. Answer: D Source: GMAT Paper Tests Some important rules: 1. ODD - ODD = EVEN 2. EVEN - ODD = ODD 3. ODD - EVEN = ODD 4. EVEN - EVEN = EVEN 5. (ODD)(ODD) = ODD 6. (ODD)(EVEN) = EVEN 7. (EVEN)(EVEN) = E...

by [email protected]

Sun Dec 05, 2021 6:29 am
Forum: Data Sufficiency
Topic: Is the integer \(n\) even?
Replies: 1
Views: 37

Re: In the figure above, if triangles \(ABC, ACD,\) and \(ADE\) are isosceles right triangles and the area of

2019-04-26_1753.png In the figure above, if triangles \(ABC, ACD,\) and \(ADE\) are isosceles right triangles and the area of \(\triangle ABC\) is \(6,\) then the area of \(\triangle ADE\) is A. \(18\) B. \(24\) C. \(36\) D. \(12\sqrt2\) E. \(24\sqrt2\) Answer: B Source: Official Guide In general, ...


Re: In the figure above, the area of the parallelogram is

2019-04-26_1721.png In the figure above, the area of the parallelogram is A. \(40\) B. \(24\sqrt3\) C. \(72\) D. \(48\sqrt3\) E. \(96\) Answer: D Source: Official Guide Area of parallelogram = (base)(height) Start by drawing an extra line, which also happens to be the height of the parallelogram ht...


Re: In a class of 30 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 book,

In a class of 30 students, 2 students did not borrow any books from the library, 12 students each borrowed 1 book, 10 students each borrowed 2 books, and the rest borrowed at least 3 books. If the average number of books per student was 2, what is the maximum number of books any single student coul...


Re: In the figure above, if \(AD\) is parallel to \(BC,\) then \(\angle ADC=\)

1.jpg In the figure above, if \(AD\) is parallel to \(BC,\) then \(\angle ADC=\) A. 11° B. 22° C. 33° D. 46° E. 134° Answer: C Source: Princeton Review First, since angles in a triangle must add to 180°, we can see that the missing angle in the red triangle must be 180° - (x + 44)° https://i.imgur....


Re: There are 27 different three-digit integers that can be formed using only the digits 1, 2 and 3. If all 27 of the

There are 27 different three-digit integers that can be formed using only the digits 1, 2 and 3. If all 27 of the integers were listed, what would their sum be? A. 2,704 B. 2,990 C. 5,404 D. 5,444 E. 5,994 OA E Source: GMAT Prep This is a great example of how the GMAT often rewards students for thi...


Re: A school has received 60% of the amount it needs for a new building by receiving a donation of $400 each from people

A school has received 60% of the amount it needs for a new building by receiving a donation of $400 each from people already solicited. People already solicited represent 40% of the people from whom the school will solicit donations. How much average contribution is required from the remaining targ...


Re: If n denotes a number to the left of 0 on the number line su

If n denotes a number to the left of 0 on the number line such that the square of n is less than 1/100, then the reciprocal of n must be A. Less than -10 B. Between -1 and -1/10 C. Between -1/10 and 0 D. Between 0 and 1/10 E. Greater than 10 Is there a strategic approach to this question? . Can any...


Re: At Joe's candy store, the total cost of \(1\) gumball and \(1\) lollipop is \(\$0.74.\) The total cost of \(1\) choc

At Joe's candy store, the total cost of \(1\) gumball and \(1\) lollipop is \(\$0.74.\) The total cost of \(1\) chocolate bar and \(1\) lollipop is \(\$0.92.\) The total cost of \(1\) gumball and \(1\) chocolate bar is \(\$1.24.\) What is the cost in dollars of \(1\) chocolate bar? A. 0.53 B. 0.59 ...


Re: If on a fishing trip Jim and Tom each caught some fish, which one caught more fish?

If on a fishing trip Jim and Tom each caught some fish, which one caught more fish? (1) Jim caught 2/3 as many fish as Tom. (2) After Tom stopped fishing, Jim continued to fish until he caught 12 fish. Answer: A Source: Official Guide Given : Jim and Tom each caught some fish Target question : Whic...


Re: A store received 7 crates of oranges. What was the standard deviation of the numbers of oranges in the 7 crates?

A store received 7 crates of oranges. What was the standard deviation of the numbers of oranges in the 7 crates? (1) For the 7 crates of oranges, the median of the numbers of oranges was equal to the greatest of the numbers of oranges. (2) For the 7 crates of oranges, the range of the numbers of or...