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Re: The output of a factory is increased by 10% to keep up with rising demand. To handle the holiday rush, this new outp

The output of a factory is increased by 10% to keep up with rising demand. To handle the holiday rush, this new output is increased by 20%. By approximately what percent would the output of the factory now have to be decreased in order to restore the original output? A. 20% B. 24% C. 30% D. 32% E. ...


Re: What is the radius of the circle with Center O

This is from OG 10th Edition. Sorry, I dont have the OA What is the radius of the circle below with Center O? 1) The ratio of OP to PQ is 1 to 2 2) P is the midpoint of chord AB Solution: Question Stem Analysis: We need to determine the radius of circle O, i.e., the length of OQ. Statement One Alon...

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Mon Jul 05, 2021 6:13 am
Forum: Data Sufficiency
Topic: What is the radius of the circle with Center O
Replies: 5
Views: 3366

Re: labour force

In year X, 8.7 percent of the men in the labor force were unemployed in June compared with 8.4 percent is May. If the number of men in the labor force was the same for both months, how many men were unemployed in June of that year? (1) In May of year X, the number of unemployed men in the labor for...

by [email protected]

Mon Jul 05, 2021 5:50 am
Forum: Data Sufficiency
Topic: labour force
Replies: 2
Views: 951

Re: What was price per share of the stock?

If the total price of n equally priced shares of a certain stock was $12,000, what was the price per share of the stock? 1) If the price per share of the stock had been $1 more, the total price of the n shares would have been $300 more 2) If the price per share of the stock had been $2 less, the to...

by [email protected]

Mon Jul 05, 2021 5:43 am
Forum: Data Sufficiency
Topic: What was price per share of the stock?
Replies: 5
Views: 1877

Re: QR #49: How many integers n are there such that r<n<s

How many integers n are there such that r < n < s? (1) s - r = 5 (2) r and s are not integers OA = C Solution: Question Stem Analysis: We need to determine the number of integers between r and s. Statement One Alone: Statement one alone is not sufficient. For example, if r = 1 and s = 6, then there...

by [email protected]

Mon Jul 05, 2021 5:20 am
Forum: Data Sufficiency
Topic: QR #49: How many integers n are there such that r<n<s
Replies: 7
Views: 6036

Re: If \(p\) and \(q\) are positive integers and \(pq = 24,\) what is the value of \(p ?\)

If \(p\) and \(q\) are positive integers and \(pq = 24,\) what is the value of \(p ?\) (1) \(\dfrac{q}6\) is an integer. (2) \(\dfrac{p}2\) is an integer. Answer: E Source: Official Guide Solution: Question Stem Analysis: We need to determine the value of p, given that pq = 24 and both p and q are ...


Re: What is the area of rectangular region R ?

What is the area of rectangular region R ? (1) Each diagonal of R has length 5. (2) The perimeter of R is 14. What's the best way to determine whether statement 1 is sufficient? Can any experts explain? Solution: Question Stem Analysis: We need to determine the area of region R, which is a rectangl...

by [email protected]

Mon Jul 05, 2021 4:59 am
Forum: Data Sufficiency
Topic: What is the area of rectangular region R ?
Replies: 2
Views: 643

Re: Can the positive integer p be expressed as the product of

Source: GMAT Paper Tests Can the positive integer p be expressed as the product of two integers, each of which is greater than 1? 1) 31 < p < 37 2) p is odd. The OA is A . Solution: Question Stem Analysis: We need to determine whether integer p can be expressed as the product of two integers, each ...


Re: If w + z = 28

7.If w + z = 28, what is the value of wz ? (1) w and z are positive integers. (2) w and z are consecutive odd integers. Solution: Question Stem Analysis: We need to determine the value of wz, given that the sum of w and z is 28. Statement One Alone: Statement one alone is not sufficient. For exampl...

by [email protected]

Mon Jul 05, 2021 4:47 am
Forum: Data Sufficiency
Topic: If w + z = 28
Replies: 6
Views: 2358

Re: If x is a positive integer, is sqrt(x) an integer?

If x is a positive integer, is sqrt(x) an integer? (1) sqrt(4x) is an integer (2) sqrt(3x) is not an integer OA: A Solution: Question Stem Analysis: We need to determine whether √x is an integer, given that x is a positive integer. Notice that √x is an integer if x is a perfect square. Statement On...

by [email protected]

Sun Jul 04, 2021 4:21 am
Forum: Data Sufficiency
Topic: If x is a positive integer, is sqrt(x) an integer?
Replies: 9
Views: 10780

Re: In the xy plane, point (r,s) lies on the circle with the cen

In the xy plane, point (r,s) lies on the circle with the centre at the origin. What is the value of r^2 +s^2? 1. The circle has radius 2 2. The point (v2,-v2) lies on the circle v=square root Solution: Question Stem Analysis: We need to determine the value of r^2 + s^2, given that (r, s) is a point...


Re: A collection of 36 cards consists of 4 sets of 9 cards

A collection of 36 cards consists of 4 sets of 9 cards in each set are numbered 1 through 9. If one card has been removed from the collection, what is the number on that card? (1) The units digit of the sum of the numbers on the remaining 35 cards is 6. (2) The sum of the numbers on the remaining 3...


Re: XYZ

If x, y, and z are three integers, are they consecutive integers? (1) z – x = 2 (2) x < y < z OA is C Solution: Question Stem Analysis: We need to determine whether x, y, and z are consecutive integers. Statement One Alone: Since we don’t know anything about y, statement one alone is sufficient. ...

by [email protected]

Wed Jun 30, 2021 11:16 am
Forum: Data Sufficiency
Topic: XYZ
Replies: 4
Views: 1240

Re: Data Sufficiency

If rs is not equal to 0, is 1/r + 1/s = 4, (1) r + s = 4rs (2) r = s [/spoiler] Solution: Question Stem Analysis: We need to determine whether 1/r + 1/s = 4, i.e., (r + s)/(rs) = 4. Statement One Alone: Since r + s = 4rs, we have (r + s)/(rs) = (4rs)/(rs) = 4. Statement one alone is sufficient. Sta...

by [email protected]

Wed Jun 30, 2021 10:53 am
Forum: Data Sufficiency
Topic: Data Sufficiency
Replies: 10
Views: 2054

Re: If \(y = x^2 - 6x + 9,\) what is the value of \(x?\)

If \(y = x^2 - 6x + 9,\) what is the value of \(x?\) (1) \(y = 0\) (2) \(x + y = 3\) Answer: A Source: Official Guide Solution: Question Stem Analysis: We need to determine the value of x. Statement One Alone: Since y = 0, we can solve the equation: x^2 - 6x + 9 = 0 (x - 3)^2 = 0 x - 3 = 0 x = 3 St...

by [email protected]

Wed Jun 30, 2021 10:50 am
Forum: Data Sufficiency
Topic: If \(y = x^2 - 6x + 9,\) what is the value of \(x?\)
Replies: 1
Views: 180