By dzyubam
- **Aug 8**, 02:00 AM

Math (PS)
What is the value of if the sum of odd, consecutive, positive integers from 1 to equals 441?
(A) 47
(B) 41
(C) 37
(D) 33
(E) 29
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By dzyubam
- **Aug 3**, 02:00 AM

Math (PS)
A flower shop has 2 tulips, 2 roses, 2 daisies, and 2 lilies. If two flowers are sold at random, what is the probability of not picking exactly two tulips?
(A)
(B)
(C)
(D)
(E)
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By dzyubam
- **Aug 1**, 02:00 AM

Math (PS)
Carly has 3 movies that she can watch during the weekend: 1 Action movie, 1 Comedy, and 1 Drama. However, she needs to watch the Drama 3 times. Assuming Carly has time for 5 movies and intends to watch all of them, in how...

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By dzyubam
- **Jul 28**, 02:00 AM

Math (PS)
Kate and David each have $10. Together they flip a coin 5 times. Every time the coin lands on heads, Kate gives David $1. Every time the coin lands on tails, David gives Kate $1. After the coin is flipped 5 times, what is...

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

Math (PS)
The choir consists of 5 boys and 6 girls. In how many ways can the singers be arranged in a row, so that all the boys are together? Do not differentiate between arrangements that are obtained by swapping two boys or two girls.
(A) 120
(B)...

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By dzyubam
- **Jul 20**, 02:00 AM

Math (PS)
There are two bars of gold-silver alloy; one piece has 2 parts of gold to 3 parts of silver, and the other has 3 parts of gold to 7 parts of silver. If both bars are melted into a 8-kg bar with the final...

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

Math (PS)
If one of two parallel lines has 7 points on it and the other has 8, how many triangles can be drawn using the points?
(A) 168
(B) 196
(C) 316
(D) 364
(E) 455
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By Knewton
- **Jul 15**, 07:15 AM

This post was written by Rich Zwelling. For more GMAT prep tips, check out the Knewton GMAT blog.
I run the risk of sounding like a hypocrite here. I'm often fond of telling my students that the GMAT is a reasoning test, not a...

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By dzyubam
- **Jul 14**, 02:00 AM

Math (PS)
A number of light bulbs were purchased to illuminate a gym. However, only of them were needed. The extra 160 light bulbs were returned. 60% percent of their cost, or $96, was reimbursed. How much money was spent on illuminating the gym?
(A) 360
(B)...

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By dzyubam
- **Jul 13**, 02:00 AM

Math (PS)
How many distinct integers are factors of 90?
(A) 6
(B) 8
(C) 9
(D) 10
(E) 12
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