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Problem Solving

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60days

Free: one lesson and one timed question a day, picked by topic

Permutation sum

by winnerhere » Fri Jun 18, 2010 8:46 am

4

Last post by winnerhere
Fri Jun 18, 2010 7:35 pm

The number of stamps

by ssuarezo » Wed Jun 16, 2010 5:40 pm

9

Last post by outreach
Fri Jun 18, 2010 10:21 am

What is the value of 2x^2 - 2.4x - 1.7 for x = 0.7?

by ironsferri » Thu Jun 17, 2010 10:27 am

7

Last post by ironsferri
Fri Jun 18, 2010 9:45 am

traingles

by neerajkumar1_1 » Fri Jun 18, 2010 6:29 am

3

Last post by selango
Fri Jun 18, 2010 8:37 am

1/a + 1/|a| = 0 has

by sanju09 » Fri Jun 18, 2010 4:11 am

5

Last post by amising6
Fri Jun 18, 2010 7:55 am

nb of divisors ?

by francoisph » Fri Jun 18, 2010 6:07 am

7

Last post by francoisph
Fri Jun 18, 2010 7:39 am

trailing numbers

by francoisph » Fri Jun 18, 2010 6:13 am

6

Last post by amising6
Fri Jun 18, 2010 7:33 am

"must be true" question??

by ohjoon2 » Fri Jun 18, 2010 7:01 am

4

Last post by Rich@VeritasPrep
Fri Jun 18, 2010 7:20 am

form 213ab

by sanju09 » Fri Jun 18, 2010 4:03 am

6

Last post by selango
Fri Jun 18, 2010 6:28 am

x^2 – 2 x + 1 ≤ 0 has

by sanju09 » Fri Jun 18, 2010 4:13 am

4

Last post by amising6
Fri Jun 18, 2010 5:40 am

COULD be an odd

by sanju09 » Fri Jun 18, 2010 4:56 am

2

Last post by amising6
Fri Jun 18, 2010 5:27 am

a value of f (n)

by sanju09 » Fri Jun 18, 2010 4:53 am

4

Last post by kvcpk
Fri Jun 18, 2010 5:24 am

4/ (√20 - √12) =

by sanju09 » Fri Jun 18, 2010 4:49 am

2

Last post by amising6
Fri Jun 18, 2010 5:19 am

have the same solution

by sanju09 » Fri Jun 18, 2010 4:46 am

2

Last post by amising6
Fri Jun 18, 2010 5:11 am

10^4 (5^4 – 2^4) / 21 =

by sanju09 » Fri Jun 18, 2010 4:23 am

4

Last post by amising6
Fri Jun 18, 2010 4:30 am

a + b = d and a b c = 0

by sanju09 » Fri Jun 18, 2010 4:17 am

2

Last post by amising6
Fri Jun 18, 2010 4:26 am

same equal rates

by sanju09 » Fri Jun 18, 2010 1:39 am

4

Last post by kvcpk
Fri Jun 18, 2010 3:55 am

(202) ^2 rounded

by sanju09 » Fri Jun 18, 2010 1:34 am

2

Last post by kvcpk
Fri Jun 18, 2010 3:40 am

og 10 inequalities prob

by nikhilkatira » Thu Jun 17, 2010 11:26 pm

5

Last post by amising6
Fri Jun 18, 2010 2:39 am

students are not studying

by sanju09 » Fri Jun 18, 2010 1:31 am

2

Last post by gmatmachoman
Fri Jun 18, 2010 2:31 am

198 700+ problem question 16

by Psyker » Thu Jun 17, 2010 9:37 am

9

Last post by kvcpk
Thu Jun 17, 2010 9:58 pm

factors theory of nb

by francoisph » Thu Jun 17, 2010 7:35 am

19

Last post by kvcpk
Thu Jun 17, 2010 9:51 pm

Roots

by phoenix9801 » Thu Jun 17, 2010 6:24 am

9

Last post by amising6
Thu Jun 17, 2010 7:55 pm

Counting method, theory of nb

by francoisph » Thu Jun 17, 2010 7:40 am

5

Last post by sk818020
Thu Jun 17, 2010 3:23 pm

Need help!

by bmanavi » Tue Jun 08, 2010 3:40 pm

7

Last post by mepinoargote
Thu Jun 17, 2010 1:50 pm

Probability

by nikhilkatira » Tue Jun 08, 2010 3:17 am

9

Last post by kvcpk
Thu Jun 17, 2010 11:52 am

Try this one on for size - courtesy of Manhattan GMAT

by pkw209 » Tue Feb 02, 2010 5:15 pm

7

Last post by Stuart@KaplanGMAT
Thu Jun 17, 2010 11:06 am

Integer

by phoenix9801 » Thu Jun 17, 2010 6:28 am

2

Last post by amising6
Thu Jun 17, 2010 7:29 am

geometry acute triangle

by francoisph » Thu Jun 17, 2010 2:30 am

19

Last post by kvcpk
Thu Jun 17, 2010 6:49 am

solid geometry cube

by francoisph » Thu Jun 17, 2010 5:35 am

3

Last post by Rich@VeritasPrep
Thu Jun 17, 2010 6:09 am

geometry obtuse triangle

by francoisph » Thu Jun 17, 2010 2:25 am

8

Last post by Rich@VeritasPrep
Thu Jun 17, 2010 4:35 am

proportion prob

by selango » Thu Jun 17, 2010 3:36 am

3

Last post by jube
Thu Jun 17, 2010 3:54 am

Geometry problem and Percentage

by phoenix9801 » Wed Jun 16, 2010 3:26 am

4

Last post by amising6
Thu Jun 17, 2010 2:51 am

Percentage Problems

by phoenix9801 » Wed Jun 16, 2010 3:28 am

6

Last post by amising6
Thu Jun 17, 2010 2:41 am

geometry convex polygon

by francoisph » Thu Jun 17, 2010 2:29 am

1

Last post by selango
Thu Jun 17, 2010 2:39 am

radius of incircle triangle?

by francoisph » Thu Jun 17, 2010 2:28 am

2

Last post by amising6
Thu Jun 17, 2010 2:35 am

geometru polygon sides

by francoisph » Thu Jun 17, 2010 2:27 am

1

Last post by kvcpk
Thu Jun 17, 2010 2:30 am

both

by gmatmachoman » Thu Jun 17, 2010 12:44 am

4

Last post by selango
Thu Jun 17, 2010 1:28 am

Number Theory

by raunakrajan » Wed Jun 16, 2010 10:41 pm

2

Last post by kvcpk
Thu Jun 17, 2010 1:19 am

Not sure if it can come in GMAT

by gmatmachoman » Thu Jun 17, 2010 12:32 am

2

Last post by amising6
Thu Jun 17, 2010 12:49 am

Triangle inscribed in circle

by ssuarezo » Wed Jun 16, 2010 5:25 pm

4

Last post by selango
Wed Jun 16, 2010 11:30 pm

Arith Problem

by raunakrajan » Wed Jun 16, 2010 10:36 pm

2

Last post by selango
Wed Jun 16, 2010 11:24 pm

Cards Problem

by raunakrajan » Wed Jun 16, 2010 9:32 pm

3

Last post by Testluv
Wed Jun 16, 2010 10:30 pm

OG 12, Q 166 (%)

by rahul.s » Thu Feb 04, 2010 5:45 am

4

Last post by Testluv
Wed Jun 16, 2010 10:27 pm

arith issue with 3 digit

by francoisph » Wed Jun 16, 2010 8:08 am

6

Last post by sumanr84
Wed Jun 16, 2010 9:10 pm

I love problem solving!! Do you?!

by Gflame998 » Tue Jun 15, 2010 1:20 am

2

Last post by amising6
Wed Jun 16, 2010 8:26 pm

What is the minimum value of x*y^2 ?

by bpgen » Wed Jun 16, 2010 7:03 pm

4

Last post by kvcpk
Wed Jun 16, 2010 8:08 pm

If n is a positive integer

by ssuarezo » Wed Jun 16, 2010 5:26 pm

5

Last post by ssuarezo
Wed Jun 16, 2010 7:16 pm

From 1973 to 1976

by ssuarezo » Wed Jun 16, 2010 5:43 pm

3

Last post by ssuarezo
Wed Jun 16, 2010 7:00 pm

og 156

by mepinoargote » Wed Jun 16, 2010 2:59 pm

2

Last post by mepinoargote
Wed Jun 16, 2010 6:57 pm

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