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Problem Solving

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Last post

find unit digit of [m]1!^1 + 2!^2 + 3!^3 + 4!^4 + 5!^5 + 6!^

by GMATinsight » Wed Feb 20, 2019 9:59 pm

0

Last post by GMATinsight
Wed Feb 20, 2019 9:59 pm

The squares of two consecutive positive integers differ by 5

by Max@Math Revolution » Sun Feb 17, 2019 11:32 pm

2

Last post by Max@Math Revolution
Wed Feb 20, 2019 5:19 pm

A number is called "mystic" if it can be expressed

by fskilnik@GMATH » Tue Feb 19, 2019 8:08 am

1

Last post by fskilnik@GMATH
Wed Feb 20, 2019 11:48 am

Four cards are chosen from a standard deck: two aces (one of

by fskilnik@GMATH » Wed Feb 20, 2019 7:17 am

2

Last post by fskilnik@GMATH
Wed Feb 20, 2019 10:47 am

Each student in a certain class is considered intermediate o

by fskilnik@GMATH » Tue Feb 19, 2019 1:02 pm

1

Last post by fskilnik@GMATH
Wed Feb 20, 2019 10:29 am

The graphs of y=7x+1 and y=kx^3 are represented in the figur

by fskilnik@GMATH » Tue Feb 19, 2019 11:47 am

1

Last post by fskilnik@GMATH
Wed Feb 20, 2019 10:20 am

A square has an area of (0.027)^(-2/3) square meters. The pe

by fskilnik@GMATH » Tue Feb 19, 2019 12:32 pm

2

Last post by fskilnik@GMATH
Tue Feb 19, 2019 5:58 pm

Three points are randomly chosen on the circumference of a g

by fskilnik@GMATH » Mon Feb 18, 2019 12:50 pm

1

Last post by fskilnik@GMATH
Tue Feb 19, 2019 11:21 am

In the xy plane, each point on the circle k has non-negative

by BTGmoderatorLU » Thu Feb 14, 2019 2:41 pm

2

Last post by deloitte247
Tue Feb 19, 2019 9:58 am

If M, N are integers greater than 1 such that 2M<N, which

by fskilnik@GMATH » Mon Feb 18, 2019 8:13 am

2

Last post by fskilnik@GMATH
Tue Feb 19, 2019 6:33 am

Let S be the set of all positive integers that, when divided

by Mike@Magoosh » Mon Oct 27, 2014 9:23 am

4

Last post by Scott@TargetTestPrep
Mon Feb 18, 2019 6:03 pm

What is the range of a set consisting of the first 100

by Azizakaria » Thu Feb 11, 2016 5:52 am

7

Last post by Scott@TargetTestPrep
Mon Feb 18, 2019 6:00 pm

At a certain fruit stand, the price of each apple is 40 cent

by BTGmoderatorDC » Sat Jan 19, 2019 4:47 am

3

Last post by Scott@TargetTestPrep
Mon Feb 18, 2019 5:59 pm

Working at their individual same constant rate, 24 machines

by BTGmoderatorLU » Thu Feb 14, 2019 2:45 pm

2

Last post by Scott@TargetTestPrep
Mon Feb 18, 2019 5:57 pm

How many positive perfect cubes are divisors of 4^6?

by fskilnik@GMATH » Mon Feb 18, 2019 5:12 am

2

Last post by fskilnik@GMATH
Mon Feb 18, 2019 5:26 pm

If a positive integer q is divisible by both 3 and 11, then

by BTGmoderatorDC » Thu Feb 14, 2019 9:07 pm

4

Last post by Scott@TargetTestPrep
Mon Feb 18, 2019 4:59 pm

If A and B are two fixed constants such that the system

by fskilnik@GMATH » Mon Feb 18, 2019 1:35 pm

2

Last post by fskilnik@GMATH
Mon Feb 18, 2019 4:48 pm

What is the value of (2^{2020} + 2^{2018}) / (2^{2020}-2^{20

by Max@Math Revolution » Fri Feb 15, 2019 12:04 am

2

Last post by Max@Math Revolution
Sun Feb 17, 2019 5:17 pm

Which of the following expressions is equal to 2^32-2^31-2^3

by Max@Math Revolution » Thu Feb 14, 2019 12:45 am

2

Last post by Max@Math Revolution
Sun Feb 17, 2019 5:15 pm

A and B start from Opladen and Cologne respectively at the

by BTGmoderatorLU » Sat Feb 16, 2019 2:14 pm

1

Last post by GMATGuruNY
Sun Feb 17, 2019 4:35 am

A scientist has 400 units of a 6% phosphoric acid solution,

by swerve » Sat Dec 22, 2018 9:03 am

3

Last post by Brent@GMATPrepNow
Sat Feb 16, 2019 7:30 am

Two water pumps, working simultaneously at their respective

by swerve » Sat Dec 22, 2018 9:11 am

3

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:25 pm

A shipping company has four empty trucks that will head out

by BTGmoderatorDC » Sun Dec 23, 2018 2:04 pm

2

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:24 pm

On the most recent test in stats class, Jamal scored x point

by BTGmoderatorDC » Sun Dec 23, 2018 2:05 pm

2

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:22 pm

A plane traveled k miles in its first 96 minutes of flight

by BTGmoderatorLU » Sat Dec 22, 2018 6:13 pm

4

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:22 pm

What is the smallest integer n such that 2^8 is a factor of

by Max@Math Revolution » Thu Dec 20, 2018 11:28 pm

4

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:21 pm

If the farmer sells 75 of his chickens, his stock of feed wi

by BTGmoderatorDC » Wed Dec 12, 2018 10:22 pm

4

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:21 pm

The sum of the weekly salaries of 5 employees is $3,250. If

by BTGmoderatorDC » Mon Dec 24, 2018 5:09 am

2

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:17 pm

There are 10 books on a shelf: 5 English books, 3 Spanish bo

by BTGmoderatorDC » Mon Dec 24, 2018 7:25 pm

3

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:17 pm

Frank and Georgia started traveling from A to B at the same

by BTGmoderatorLU » Fri Jan 25, 2019 2:38 pm

4

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:16 pm

the mixture to make the ratio of milk and water in the new m

by vishwash » Sat Jan 05, 2019 11:56 am

2

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:15 pm

Triangle XYZ is an isosceles right triangle. If side XY is l

by BTGmoderatorDC » Fri Feb 08, 2019 6:13 pm

3

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:14 pm

The product P of two prime numbers is between 9 and 55.

by BTGmoderatorLU » Tue Feb 12, 2019 1:53 pm

2

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:14 pm

A mountain resort will hold its annual one-day snowboarding

by BTGmoderatorDC » Tue Feb 12, 2019 7:13 pm

2

Last post by Scott@TargetTestPrep
Fri Feb 15, 2019 5:14 pm

How many integers between 18 and 3399 are multiples of 17?

by Max@Math Revolution » Wed Feb 13, 2019 12:35 am

2

Last post by Max@Math Revolution
Fri Feb 15, 2019 12:03 am

If 4<=x<=6 and 2<=y<=3, then

by fskilnik@GMATH » Thu Feb 14, 2019 10:49 am

1

Last post by fskilnik@GMATH
Thu Feb 14, 2019 5:11 pm

Which of the following numbers is closest to 100*(11-sqrt(

by fskilnik@GMATH » Thu Feb 14, 2019 12:50 pm

2

Last post by fskilnik@GMATH
Thu Feb 14, 2019 5:01 pm

Three points are chosen independently an at random on the ci

by BTGmoderatorDC » Thu Feb 14, 2019 3:45 am

1

Last post by fskilnik@GMATH
Thu Feb 14, 2019 4:37 pm

A hundred identical cubic boxes are currently arranged in

by AAPL » Tue Feb 12, 2019 4:34 am

2

Last post by swerve
Thu Feb 14, 2019 11:28 am

A group of x people is practicing levitation yoga. One-fourt

by AAPL » Thu Feb 14, 2019 3:22 am

2

Last post by GMATGuruNY
Thu Feb 14, 2019 10:10 am

If x^(1-x) = 4, what is the value of

by fskilnik@GMATH » Wed Feb 13, 2019 6:12 pm

1

Last post by fskilnik@GMATH
Thu Feb 14, 2019 4:51 am

In the rectangular coordinate system, which of the above rep

by fskilnik@GMATH » Wed Feb 13, 2019 2:03 pm

1

Last post by fskilnik@GMATH
Thu Feb 14, 2019 4:19 am

The area of triangle KLM is equal to the area of rectangle

by AAPL » Thu Feb 14, 2019 3:17 am

0

Last post by AAPL
Thu Feb 14, 2019 3:17 am

How many numbers between 1 and 200, inclusive, have a 2 in

by Max@Math Revolution » Mon Feb 11, 2019 11:40 pm

3

Last post by Max@Math Revolution
Thu Feb 14, 2019 12:44 am

Out of 2 broken TV sets and 6 fixed TV sets in Joe's Fix-My-

by BTGmoderatorDC » Fri Feb 08, 2019 6:04 am

2

Last post by Scott@TargetTestPrep
Wed Feb 13, 2019 6:35 pm

An electrical supplies store sells 140 power stabilizer

by AAPL » Fri Feb 08, 2019 5:07 am

3

Last post by Scott@TargetTestPrep
Wed Feb 13, 2019 6:35 pm

A computer chip manufacturer expects the ratio of the number

by BTGmoderatorLU » Mon Feb 11, 2019 3:18 pm

2

Last post by Scott@TargetTestPrep
Wed Feb 13, 2019 6:35 pm

If there is a 20% chance of rain every day for the next 7

by BTGmoderatorLU » Mon Feb 11, 2019 3:27 pm

2

Last post by Scott@TargetTestPrep
Wed Feb 13, 2019 6:34 pm

In the xy-coordinate plane, if the point (0,2) lies on the g

by BTGmoderatorDC » Mon Feb 11, 2019 4:57 pm

2

Last post by Scott@TargetTestPrep
Wed Feb 13, 2019 6:32 pm

At her current job, Mary gets a 1.5% raise twice per year.

by swerve » Tue Feb 12, 2019 8:24 am

2

Last post by Scott@TargetTestPrep
Wed Feb 13, 2019 6:31 pm

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