Search found 74 matches
Re: Need help explaining an official answer explanation
Problem: 1) If x is an integer and y=3x+2, which of the following cannot be a divisor of y? A) 4 B) 5 C) 6 D) 7 E) 8 The official ans. explanation states that "Altough 3x is always divisible by 3, so 3x+2 cannot be div. by 3 since 2 is not divisible by 3. Thus, 3x+2 cannot be divisible by any ...
- by quant-master
Mon Aug 31, 2009 12:12 pm- Forum: Problem Solving
- Topic: Need help explaining an official answer explanation
- Replies: 2
- Views: 1127
Re: permutation_concept
Guys, Can somebody explain the concept of box - letter concept. Q. In how many ways can 8 letters be posted in 5 letter boxes ? Thanks, V Take letter 1 you can post it either in box 1 or 2 or 3 or 4 or 5 hence 5 ways similarly letter 2 you can do it in 5 ways..... letter 8 you can do it in 5 ways h...
- by quant-master
Mon Aug 31, 2009 12:07 pm- Forum: Problem Solving
- Topic: permutation_concept
- Replies: 1
- Views: 1133
Re: value of M
M= 4^1/2+ 4^1/3+4^1/4shahab03 wrote:whats the easy way to solve this one? thanks
= 2+2^2/3+2^1/2
We know that 2^1/2 is 1.414 (approx)
Hence 2+2^2/3+1.414 = 3.414+2^2/3
2^2/3 will definitely be greater than 1.414 hence M>4
Thanks,
Quants-Master
- by quant-master
Mon Aug 31, 2009 12:03 pm- Forum: Problem Solving
- Topic: value of M
- Replies: 1
- Views: 1047
Re: icecreams
There is one survey testing 60 people who taste the three different flavors of icecream. Vanilla(V), Chocolate(C), and Strawbery(S). All the people participate in the survey and rank them. There is no situation where there two flavors are ranked equally. 3/5 of the people rank V worst. 1/10 of them...
- by quant-master
Fri Aug 28, 2009 10:35 pm- Forum: Problem Solving
- Topic: icecreams
- Replies: 4
- Views: 2379
Question of the Day - 27th August, 2009
Question 1: How many five-digit numbers are there, if the two leftmost digits are even, the other digits are odd and the digit 4 cannot appear more than once in the number? a)1875 b)2000 c)2375 d)2500 e)3875 Question 2: 6 persons seat themselves at round table. What is the probability that 2 given p...
- by quant-master
Wed Aug 26, 2009 3:42 pm- Forum: Problem Solving
- Topic: Question of the Day - 27th August, 2009
- Replies: 4
- Views: 1167
Question of the Day - 26th August, 2009
Question 2: Three types of pencils, J,K, and L, cost $0.05, $0.10, and $0.25 each, respectively. If a box of 32 of these pencils costs a total of $3.40 and if there are twice as many K pencils as L pencils in the box, how many J pencils are in the box? (A) 6 (B) 12 (C) 14 (D) 18 (E) 20 Question 3: F...
- by quant-master
Tue Aug 25, 2009 4:03 pm- Forum: Problem Solving
- Topic: Question of the Day - 26th August, 2009
- Replies: 3
- Views: 982
Question of the Day - 26th August, 2009
Question 1:
If x is an integer, is y an integer?
(1) The average (arithmetic mean) of x, y and y-2 is x.
(2) The average (arithmetic mean) of x and y is not an integer.
OA will be in 24 hrs time
Thanks,
Quant-Master
- by quant-master
Tue Aug 25, 2009 3:59 pm- Forum: Data Sufficiency
- Topic: Question of the Day - 26th August, 2009
- Replies: 2
- Views: 945
- by quant-master
Tue Aug 25, 2009 3:51 pm- Forum: Data Sufficiency
- Topic: Question of the Day - 22nd August, 2009
- Replies: 12
- Views: 1960
- by quant-master
Tue Aug 25, 2009 3:49 pm- Forum: Data Sufficiency
- Topic: Question of the Day - 25th August, 2009
- Replies: 5
- Views: 1386
That's correct.
D is the right answer.
Let me know if anybody needs further explanation
Thanks,
Quant-Master
- by quant-master
Tue Aug 25, 2009 3:48 pm- Forum: Problem Solving
- Topic: Question of the Day - 25th August, 2009
- Replies: 2
- Views: 1042
Re: garrison
A garrison of 750 men has provision for 20 weeks, if at the end of 4 weeks, they are reinforced by 450 men, how long the provision will last? OA is 10 weeks someone explain! Total provision is 750*20 =15,000 Provision used in 4 weeks is 750*4 =3,000 Provisions left = 15,000-3,000 = 12,000 ---(1) Nu...
- by quant-master
Mon Aug 24, 2009 3:33 pm- Forum: Problem Solving
- Topic: garrison
- Replies: 3
- Views: 7380
Question of the Day - 25th August, 2009
Question 2:
X,Y > 0 ,If X^3 = Y, is Y a fraction?
(1) X^2 is a fraction
(2) X >Y
OAs will be posted in 24 hrs time
Thanks,
Quant-Master
- by quant-master
Mon Aug 24, 2009 3:29 pm- Forum: Data Sufficiency
- Topic: Question of the Day - 25th August, 2009
- Replies: 5
- Views: 1386
Question of the Day - 25th August, 2009
Question 1:
What is the probability for a family with three children to have a boy and two girls, assuming the probability of having a boy or a girl is equal?
a)1/8
b)¼
c)½
d)3/8
e)5/8
OAs will be posted in 24 hrs time
Thanks,
Quant-Master
- by quant-master
Mon Aug 24, 2009 3:28 pm- Forum: Problem Solving
- Topic: Question of the Day - 25th August, 2009
- Replies: 2
- Views: 1042
Question of the Day - 22nd August, 2009
In a certain game played with red chips and blue chips, each red chip has a point value of X and each blue chip has a point value of Y, where X>Y and X and Y are positive integers. If a player has 5 red chips and 3 blue chips, what is the average (arithmetic mean ) point value of the 8 chips that th...
- by quant-master
Fri Aug 21, 2009 9:50 am- Forum: Data Sufficiency
- Topic: Question of the Day - 22nd August, 2009
- Replies: 12
- Views: 1960
- by quant-master
Fri Aug 21, 2009 9:24 am- Forum: Data Sufficiency
- Topic: Greatest Integer
- Replies: 4
- Views: 1216