Data Sufficiency

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A can complete a piece of work in $x$ days and $B$ can do the same piece of work in $y$ days. If $B$ starts work

by Vincen » Sun Jan 03, 2021 8:08 am

Last post by Vincen
Sun Jan 03, 2021 8:08 am

What is the value of number $X?$

by Vincen » Sun Jan 03, 2021 7:57 am

Last post by Vincen
Sun Jan 03, 2021 7:57 am

What is the least value of the positive integer $n?$

by Vincen » Sun Jan 03, 2021 7:50 am

Last post by Vincen
Sun Jan 03, 2021 7:50 am

In the $xy$ plane, $PQ$ is a straight line. The coordinate of point $P$ is $(a, b),$ where $a > 0.$ Does point

by Vincen » Sun Jan 03, 2021 7:46 am

Last post by Vincen
Sun Jan 03, 2021 7:46 am

If $n$ is a positive integer, Is $n^2 + 4n + 3$ divisible by $4?$

by Vincen » Sun Jan 03, 2021 7:39 am

Last post by Vincen
Sun Jan 03, 2021 7:39 am

Does the line $px + qy = r,$ where $p, q$ and $r$ are integers, pass through the origin?

by Vincen » Sun Jan 03, 2021 7:31 am

Last post by Vincen
Sun Jan 03, 2021 7:31 am

Julio covers the first $r$ miles of his journey at $x$ miles per hour and the last $s$ miles of his journey at

by Vincen » Sun Jan 03, 2021 7:21 am

Last post by Vincen
Sun Jan 03, 2021 7:21 am

A solution consists of only water and alcohol such that the ratio of alcohol to water in the solution is 7:3. How much

by Vincen » Sun Jan 03, 2021 7:15 am

Last post by Vincen
Sun Jan 03, 2021 7:15 am

If y = x^2 - 6x + 9, what is the value of x?

by BTGModeratorVI » Mon Dec 28, 2020 8:29 am

Last post by Brent@GMATPrepNow
Sun Jan 03, 2021 6:42 am

Find the units digit of $556^{17n}+339^{5m+15n},$ where $m$ and $n$ are positive integers.

by M7MBA » Sun Dec 27, 2020 3:35 pm

Last post by deloitte247
Sat Jan 02, 2021 10:26 am

If a and b are nonzero numbers on the number line, is 0 between a and b ? (1) The distance between 0 and a is greater

by BTGmoderatorDC » Fri Jan 01, 2021 7:04 pm

Last post by BTGmoderatorDC
Fri Jan 01, 2021 7:04 pm

If 0 < a < b, is c < 0?

by BTGModeratorVI » Mon Dec 28, 2020 8:31 am

Last post by Brent@GMATPrepNow
Fri Jan 01, 2021 6:58 am

If x and y are positive integers, is the product xy divisible by 9?

by BTGModeratorVI » Mon Dec 28, 2020 8:32 am

Last post by Brent@GMATPrepNow
Fri Jan 01, 2021 6:57 am

Is a an even integer?

by BTGmoderatorDC » Thu Dec 31, 2020 6:19 pm

Last post by BTGmoderatorDC
Thu Dec 31, 2020 6:19 pm

Four workers from an international charity were selling shirts at a local event yesterday. Did one of the...

by AAPL » Thu Dec 31, 2020 10:57 am

Last post by AAPL
Thu Dec 31, 2020 10:57 am

The least common multiple of positive integers p and q is 72. What is the greatest common factor of p and q?

by AAPL » Thu Dec 31, 2020 10:44 am

Last post by AAPL
Thu Dec 31, 2020 10:44 am

Last school year, each of the 200 students at a certain high school attended the school for the entire year. If there we

by BTGModeratorVI » Mon Dec 28, 2020 8:31 am

Last post by Brent@GMATPrepNow
Thu Dec 31, 2020 6:46 am

Pat bought 5 pounds of apples. How many pounds of pears could he have bought for the same amount of money?

by AAPL » Wed Dec 30, 2020 7:17 am

Last post by Brent@GMATPrepNow
Thu Dec 31, 2020 6:45 am

Que: If n is a positive integer, is $n\ \cdot\ \left(n\ -\ 1\right)\cdot\left(n\ +\ 1\right)$ divisible by 4?

by Max@Math Revolution » Sat Dec 26, 2020 11:08 pm

Last post by Max@Math Revolution
Wed Dec 30, 2020 11:31 pm

Each baby born at a certain hospital last week was either a single birth or one of a pair twins. If x is the number of

by BTGmoderatorDC » Wed Dec 30, 2020 4:32 pm

Last post by BTGmoderatorDC
Wed Dec 30, 2020 4:32 pm

Adam is one among many employees of ABC ltd., who procures shoes at an average cost of $40. His yearly procurement budge

by M7MBA » Sun Dec 27, 2020 3:30 pm

Last post by deloitte247
Wed Dec 30, 2020 7:32 am

Each person attending a fund-raising party for a certain club was charged the same admission fee. How many people...

by AAPL » Wed Dec 30, 2020 7:13 am

Last post by AAPL
Wed Dec 30, 2020 7:13 am

Lines k and m are parallel to each other. Is the slope of line k positive?

by BTGModeratorVI » Mon Dec 28, 2020 8:36 am

Last post by Brent@GMATPrepNow
Wed Dec 30, 2020 6:28 am

Four workers from an international charity were selling shirts at a local event yesterday. Did one of the workers sell

by BTGmoderatorDC » Tue Dec 29, 2020 4:05 pm

Last post by BTGmoderatorDC
Tue Dec 29, 2020 4:05 pm

If 1 < d < 2, is the tenths’ digit of the decimal representation of d equal to 9?

by BTGModeratorVI » Mon Dec 28, 2020 8:29 am

Last post by Brent@GMATPrepNow
Tue Dec 29, 2020 2:46 pm

Set $A$ consists of $8$ different integers from the list $\{1,3,5,7,9,11,13,15,17,19\}.$ What is standard deviatio

by Gmat_mission » Sun Dec 27, 2020 3:42 pm

Last post by deloitte247
Tue Dec 29, 2020 9:53 am

The average of 6 numbers is 8. One new number is now added to the set of 6 numbers and the arithmetic mean of the 7 numb

by Gmat_mission » Sun Dec 27, 2020 3:38 pm

Last post by deloitte247
Tue Dec 29, 2020 8:25 am

Is the integer X between 20 and 26 inclusive?

by BTGModeratorVI » Mon Dec 28, 2020 8:32 am

Last post by Brent@GMATPrepNow
Mon Dec 28, 2020 6:31 pm

Two containers contain milk and water solutions of volume x liters and y liters, respectively. What would be the minimum

by BTGmoderatorDC » Mon Dec 28, 2020 5:12 pm

Last post by BTGmoderatorDC
Mon Dec 28, 2020 5:12 pm

Is the sum of two integers divisible by 10 ?

by BTGModeratorVI » Mon Dec 28, 2020 8:35 am

Last post by Brent@GMATPrepNow
Mon Dec 28, 2020 8:50 am

Robin invested a total of $12,000 in two investments, X and Y, so that the investments earned the same amount of simple

by BTGModeratorVI » Mon Dec 28, 2020 8:35 am

Last post by Brent@GMATPrepNow
Mon Dec 28, 2020 8:50 am

Is ab a prime number?

by BTGModeratorVI » Mon Dec 28, 2020 8:36 am

Last post by Brent@GMATPrepNow
Mon Dec 28, 2020 8:50 am

A circle in a coordinate plane has a center at point A and a diameter of 6. If points B and C also lie in the same

by BTGmoderatorDC » Sun Dec 27, 2020 4:47 pm

Last post by BTGmoderatorDC
Sun Dec 27, 2020 4:47 pm

The decimal representation of the number is given above, where $z$ is a positive number and $a, b$ and $c$ are

by Gmat_mission » Sun Dec 27, 2020 3:55 pm

Last post by Gmat_mission
Sun Dec 27, 2020 3:55 pm

If $X$ is a positive integer, what is the units digit of $X^a?$

by Gmat_mission » Sun Dec 27, 2020 3:49 pm

Last post by Gmat_mission
Sun Dec 27, 2020 3:49 pm

Is the product of two integers $A$ and $B$ odd?

by Gmat_mission » Sun Dec 27, 2020 3:46 pm

Last post by Gmat_mission
Sun Dec 27, 2020 3:46 pm

If $M$ and $x$ are positive integers greater than $1,$ what is the unit digit of $M^x?$

by M7MBA » Sun Dec 27, 2020 3:27 pm

Last post by M7MBA
Sun Dec 27, 2020 3:27 pm

Alex bought a smartwatch for $200 from his friend and sold it to another friend at a certain price. What is his actual

by M7MBA » Sun Dec 27, 2020 3:24 pm

Last post by M7MBA
Sun Dec 27, 2020 3:24 pm

What is the $\rm GCD$ of the numbers $3, a,$ and $12,$ if $a$ is an integer and $a \ge 3?$

by M7MBA » Sun Dec 27, 2020 3:21 pm

Last post by M7MBA
Sun Dec 27, 2020 3:21 pm

The median of a set of $5$ different numbers is$x.$ If we add another set of $5$ numbers to the existing set, will

by M7MBA » Sun Dec 27, 2020 3:15 pm

Last post by M7MBA
Sun Dec 27, 2020 3:15 pm

In the given figure, $ABC$ is a triangle, and $DEFG$ is a square. Find the area of the square.

by M7MBA » Sun Dec 27, 2020 3:11 pm

Last post by M7MBA
Sun Dec 27, 2020 3:11 pm

Set $A$ contains $n$ distinct positive integers, all greater than $1.$ If the number of even integers in the set

by M7MBA » Sun Dec 27, 2020 3:06 pm

Last post by M7MBA
Sun Dec 27, 2020 3:06 pm

150 representatives of an organization participated in a survey. 50% of all the representatives considered global warmin

by M7MBA » Sun Dec 27, 2020 3:01 pm

Last post by M7MBA
Sun Dec 27, 2020 3:01 pm

The 250 students enrolled at ABC University are taking undergraduate, graduate courses, or both. How many students...

by BTGmoderatorLU » Sat Dec 19, 2020 4:07 am

Last post by deloitte247
Sun Dec 27, 2020 1:53 pm

If a < b, is a < c?

by BTGmoderatorDC » Sun Dec 20, 2020 5:50 pm

Last post by deloitte247
Sun Dec 27, 2020 12:22 pm

The integers from list $A$ are used to form two distinct sets $P$ and $Q$ each consisting of distinct integers

by M7MBA » Sun Dec 27, 2020 8:19 am

Last post by M7MBA
Sun Dec 27, 2020 8:19 am

How many people in a society of 500 own both a bike and a car?

by M7MBA » Sun Dec 27, 2020 7:55 am

Last post by M7MBA
Sun Dec 27, 2020 7:55 am

For any positive number $n,$ the function $\#n$ represents the value of the number $n$ rounded to the nearest inte

by VJesus12 » Sun Dec 27, 2020 7:51 am

Last post by VJesus12
Sun Dec 27, 2020 7:51 am

$x$ is a prime number and $y$ is a positive integer. If $x$ and $y$ have only two common factors, what is the

by VJesus12 » Sun Dec 27, 2020 7:45 am

Last post by VJesus12
Sun Dec 27, 2020 7:45 am

If $x$ is a non-zero number, is $\dfrac{x}{|x|}<x?$

by VJesus12 » Sun Dec 27, 2020 7:38 am

Last post by VJesus12
Sun Dec 27, 2020 7:38 am

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