By dzyubam
- Oct 11, 02:00 AM
Math (PS)
One fisherman was telling his friends that he caught a fish that had a 60 foot long head. It also had a tail that was as long as the fish's head and a half of its body. Finally, the body was half the size...
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By dzyubam
- Oct 10, 02:00 AM
Math (PS)
Which set(s) has the greatest standard deviation?
1. Set 1 consisting of 10 digits
2. Set 2 consisting of 10 first positive consecutive even numbers
3. Set 3 consisting of 10 first primes
(A) set 1
(B) set 2
(C) set 3
(D) set 1 and 2
(E) set 1, 2, and...
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By dzyubam
- Oct 7, 02:00 AM
Math (DS)
Are integers , , and consecutive?
1. equals the arithmetic mean of and
2.
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By Knewton
- Oct 6, 13:23 PM
In last week's post, I gave the following Data Sufficiency problem to be solved using a chart:
A certain zoo has 288 mammals, 25 percent of which are female. What percent of the mammals in the zoo were born at the zoo?
The number of male mammals...
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By dzyubam
- Oct 6, 02:00 AM
Math (PS)
A car dealership sold two cars: the first car at a 10% profit and the second car at a 10% loss, which gave them an overall profit margin of 5% from these two sales. If the dealership's total profit was $1000, what was the...
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By dzyubam
- Oct 5, 02:00 AM
Math (DS)
Is a terminating decimal?
1.
2.
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By dzyubam
- Oct 4, 02:00 AM
Math (PS)
A computer generated a sequence of numbers using the following formula:
is the common difference between any two consecutive terms of the sequence
If the sum of the second and the fifth terms of the sequence is 8 and the sum of the...
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By dzyubam
- Oct 3, 02:00 AM
Math (PS)
Lionel left his house and walked towards Walt's house, 48 miles away. Two hours later, Walt left his house and ran towards Lionel's house. If Lionel's speed was 4 miles per hour and Walt's 6 miles per hour, how many miles had Lionel walked...
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By dzyubam
- Sep 30, 02:00 AM
Math (DS)
Are positive integers , , and equal?
1.
2.
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By dzyubam
- Sep 29, 02:00 AM
Math (DS)
If and represent digits of a two digit number divisible by 3, is the two digit number less than 50?
1. Sum of the digits is a multiple of 18
2. Product of the digits is a multiple of 9
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