Search found 135 matches
- by nidhis.1408
Wed Oct 17, 2012 10:30 am- Forum: Problem Solving
- Topic: six coins
- Replies: 6
- Views: 1555
six coins
If six coins are flipped simultaneously, the probability of getting at least one pair is closest to:
a. 3%
b. 6%
c. 75%
d. 94%
e. 97%
- by nidhis.1408
Wed Oct 17, 2012 8:49 am- Forum: Problem Solving
- Topic: six coins
- Replies: 6
- Views: 1555
divisible by 11
If n = 14,444, which of the following operations will not yield a number that is divisible by 11?
a. n - 1
b. n + 10
c. n - 100
d. n + 100,000
c. n - 100,000
Is there a quick way to solve this?
- by nidhis.1408
Wed Oct 17, 2012 8:41 am- Forum: Problem Solving
- Topic: divisible by 11
- Replies: 8
- Views: 4314
This is the solution in Veritas prep- Solution: A. g(f(100)) = g(100!) = the product of all the digits of whatever 100! equals. Since 100! is 100 times some integer, it will certainly end in (at least) two zeros. Even one of those zeros would be sufficient to render the product of all the digits 0, ...
- by nidhis.1408
Wed Oct 17, 2012 8:24 am- Forum: Problem Solving
- Topic: factorial
- Replies: 8
- Views: 1916
factorial
x! is defined for all whole numbers x as the product of all the positive integers from 1 to x inclusive (where 0!, considered an “empty product,� is defined as 1). For example, 5! = (1)(2)(3)(4)(5). Let two functions be defined over the set of whole numbers as follows: f(x) = x! g(x) = the produ...
- by nidhis.1408
Wed Oct 17, 2012 8:06 am- Forum: Problem Solving
- Topic: factorial
- Replies: 8
- Views: 1916
- by nidhis.1408
Wed Oct 17, 2012 7:39 am- Forum: Problem Solving
- Topic: circular meter track
- Replies: 4
- Views: 1818
- by nidhis.1408
Wed Oct 17, 2012 7:36 am- Forum: Problem Solving
- Topic: How many ways?
- Replies: 3
- Views: 2351
retail price
When sold at a 40% discount, a sweater nets the merchant a 20% profit on the wholesale cost at which he initially purchased the item. By what % is the sweater marked up from wholesale at its normal retail price?
a. 20%
b. 40%
c. 50%
d. 80%
e. 100%
- by nidhis.1408
Wed Oct 17, 2012 7:22 am- Forum: Problem Solving
- Topic: retail price
- Replies: 1
- Views: 1378
How many ways?
How many ways can Jason sit with his five friends in a row of six seats with an aisle on either side of the row, if Jason insists on sitting one of the aisles?
a. 120
b. 240
c. 360
d. 540
e. 720
- by nidhis.1408
Wed Oct 17, 2012 7:08 am- Forum: Problem Solving
- Topic: How many ways?
- Replies: 3
- Views: 2351
circular meter track
Donovan and Michael are racing around a circular 400-meter track. If Donovan runs each lap in 45 seconds and Michael runs each lap in 40 seconds, how many laps will Michael have to complete in order to pass Donovan, assuming they start at the same time? a. 8 b. 9 c. 10 d.11 e. 12 Can anyone please e...
- by nidhis.1408
Wed Oct 17, 2012 7:03 am- Forum: Problem Solving
- Topic: circular meter track
- Replies: 4
- Views: 1818
range
If x is a positive integer and 7^x + 2^19 = 7^q, (q - x) could be in which the following ranges?
(i) (q-x) < 0
(ii) 0 < (q-x) < 1
(iii) 1 < (q-x)
a. i only
b. ii only
c. iii only
d. ii and iii only
e. i, ii, and iii
- by nidhis.1408
Wed Oct 17, 2012 6:54 am- Forum: Problem Solving
- Topic: range
- Replies: 2
- Views: 954
factory worker
At a certain factory, each employee working the second shift produced 2/3 as many widgets as each employee working the first shift. If the first shift has 3/4 as many employees, what fraction of the total widgets did the second shift produce?
a. 8/17
b. 1/2
c. 8/9
d. 9/8
e. 17/8
- by nidhis.1408
Wed Oct 17, 2012 6:43 am- Forum: Problem Solving
- Topic: factory worker
- Replies: 5
- Views: 1707
tough sentence correction
Stymieing the Armada’s plans to meet up with the Duke of Parma’s army off the coast of Flanders in the Spanish Netherlands, the reason for the defeat of the Spanish Armada was not only due to gale winds that favored the British but also the sacrificing of eight war ships as “fireships,� ves...
- by nidhis.1408
Tue Oct 16, 2012 11:07 am- Forum: Sentence Correction
- Topic: tough sentence correction
- Replies: 2
- Views: 1364
time
Barry walks from one end to the other of a 30-meter long moving walkway at a constant rate in 30 seconds, assisted by the walkway. When he reaches the end, he reverses direction and continues walking with the same speed, but this time it takes him 120 seconds because he is traveling against the dire...
- by nidhis.1408
Tue Oct 16, 2012 9:16 am- Forum: Problem Solving
- Topic: time
- Replies: 2
- Views: 1667
- by nidhis.1408
Tue Oct 16, 2012 8:56 am- Forum: Problem Solving
- Topic: probabilty
- Replies: 3
- Views: 1465