By dzyubam
- **Sep 7**, 02:00 AM

Math (PS)
What is the last digit of ?
(A) 1
(B) 3
(C) 6
(D) 7
(E) 9
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By dzyubam
- **Sep 6**, 02:00 AM

Math (PS)
The safety distance (meters) between cars moving on a motorway depends on their speed (meters per second):
If two cars want to maintain a time interval of 1 second between each other, which of the following speeds will breach the safety regulation?
(A) 5...

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By dzyubam
- **Sep 1**, 02:00 AM

Math (PS)
If among 5 children there are 2 siblings, in how many ways can the children be seated in a row so that the siblings do not sit together?
(A) 38
(B) 46
(C) 72
(D) 86
(E) 102
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By dzyubam
- **Aug 31**, 02:00 AM

Math (PS)
Comet A is seen near the Earth every 12 years while comet B every 20 years. If both comets were observed in 1979, for how many years do we have to wait to see the two comets together again? (Assume now is 2004)
(A) 16
(B)...

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By Knewton
- **Aug 27**, 13:19 PM

In my last post, I covered the theory behind the Denial Test for Critical Reasoning Assumption questions and demonstrated how to do negations properly. If you're not sure what the Denial Test is or want a refresher on ...

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By dzyubam
- **Aug 25**, 02:00 AM

Math (PS)
Mary and Joe are to throw three dice each. The score is the sum of points on all three dice. If Mary scores 10 in her attempt what is the probability that Joe will outscore Mary in his?
(A)
(B)
(C)
(D)
(E)
GMAT Daily...

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By dzyubam
- **Aug 24**, 04:15 AM

Math (DS)
If Richard is 3 years younger than his sister, how old will Richard be in 5 years?
1. Two years ago Richard was twice as young as his sister.
2. If Richard's sister were born 2 years earlier, she would now be twice as old as...

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By dzyubam
- **Aug 18**, 02:00 AM

Math (PS)
If each expression under the square root is greater than or equal to 0, what is ?
(A)
(B)
(C)
(D)
(E)
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By dzyubam
- **Aug 17**, 02:00 AM

Math (PS)
A construction company wants to number new houses using digit plates only. If the company puts an order for 1212 plates how many houses are to be given numbers? (The numbers of houses are consecutive and the number of the first house is 1).
(A)...

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By Knewton
- **Aug 15**, 07:49 AM

<em>This post was written by Sean Murphy, one of Knewton's expert <a href="http://www.knewton.com/gmat">GMAT prep</a> teachers. For more expert GMAT help, check out the Knewton <a href="http://www.knewton.com/blog/gmat/">GMAT blog</a>. </em>
Critical Reasoning Assumption questions ask you to identify an unspoken assumption made by the argument’s...

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