Search found 5 matches


When the positive integer x is divided by 11, the quotient is y and the remainder is 3. When x is divided by 19, the remainder is also 3. What is the remainder when y is divided by 19? Help me with this problem. x/11=y+3 x/19=z+3 y/19=? (x-3)/11=y (x-3)/19=z We assume that y and z are integers. (x-...

by Alex Lbn

Wed Oct 06, 2010 7:34 pm
Forum: Problem Solving
Topic: Remainder
Replies: 5
Views: 1157

A "complete set" of disk consist of one green disk, one blue disk, one orange disk and one purple disk. A bag contains 12 green disks, 12 blue disks, 12 orange disks and 12 purple disks The bag contains nothing else. If 6 disks are randomly selected from the bag, what is the greatest possible numbe...

by Alex Lbn

Wed Oct 06, 2010 5:11 pm
Forum: Problem Solving
Topic: Probability question
Replies: 2
Views: 1615

Original post: thunderdogg Posted: Mon Nov 26, 2007 10:14 pm Question 6 from this problem set: 6. A credit card number has 5 digits (between 1 to 9). The first two digits are 12 in that order, the third digit is bigger than 6, the forth is divisible by 3 and the fifth digit is 3 times the sixth. How...

by Alex Lbn

Wed Jul 28, 2010 9:28 am
Forum: GMAT Math
Topic: Probability and Combination Problems
Replies: 16
Views: 47994

Could someone post pure 800 level problem?

Please, post really 800 level problem. I've just started my GMAT course and would like to see something from the very top; something so difficult, that will make me crap my pants.

by Alex Lbn

Thu Jun 03, 2010 5:51 pm
Forum: GMAT Math
Topic: Could someone post pure 800 level problem?
Replies: 3
Views: 1291

Venn Diagram with 3 sets, need help with the solution

The Economic News Weekly has 25 reporters covering Asia, 20 covering Europe, and 20 covering North America. Four reporters cover Asia and Europe, but not North America, 6 reporters cover Asia and North America, but not Europe, and 7 reporters cover Europe and North America, but not Asia. How many re...

by Alex Lbn

Thu Jun 03, 2010 11:51 am
Forum: Data Sufficiency
Topic: Venn Diagram with 3 sets, need help with the solution
Replies: 2
Views: 2790