Search found 9 matches
Hi Stuti567, Is this a GMAT practice question? I ask because it doesn't have the 'style' of one (and if you're actually studying for the GMAT, then you might want to invest in more realistic practice materials). That having been said, this is more of a 'concept' question than anything else - and yo...
- by Stuti567
Mon Jul 04, 2016 8:53 pm- Forum: Problem Solving
- Topic: Averages
- Replies: 7
- Views: 1993
Averages
55 people sit at a round table. Rs 220 is to be distributed among them so that each person receives an amount which is the average of the amounts with his immediate neighbours. In how many ways can this be achieved?
(a) 55C3 x 4!
(b) 0
(c) 4
(d) 1
(e) 55
Please answer with explanation.
Answerd
- by Stuti567
Mon Jul 04, 2016 3:03 am- Forum: Problem Solving
- Topic: Averages
- Replies: 7
- Views: 1993
How many pairs of positive integers m, n satisfy
1.How many pairs of positive integers (m, n) satisfy
where n is an odd integer less than 60?
Choose one answer.
a. 5
b. 3
c. 4
d. 6
e. 7
- by Stuti567
Wed Jun 29, 2016 2:47 am- Forum: Problem Solving
- Topic: How many pairs of positive integers m, n satisfy
- Replies: 1
- Views: 5706
Integer/ Number Properties
What is the number of positive integers that divide k^2 but do not divide k, where k is a positive integer?
(1) k^2 has a total of 13 factors
(2) √k has a total of 4 factors
- by Stuti567
Sun May 08, 2016 12:09 am- Forum: Data Sufficiency
- Topic: Integer/ Number Properties
- Replies: 1
- Views: 975
- by Stuti567
Fri May 06, 2016 5:02 am- Forum: Problem Solving
- Topic: 5 Balls in 3 boxes (Permutation Combination)
- Replies: 6
- Views: 13390
Five marbles of different colors are to be placed in three boxes of different sizes. Each box can hold five marbles. The number of ways in which we can place the marbles in the boxes so that no box remains empty is? a) 30 b) 150 c) 600 d) 900 Case 1: 1 box has 3 marbles, the other 2 boxes each have...
- by Stuti567
Fri May 06, 2016 2:35 am- Forum: Problem Solving
- Topic: 5 Balls in 3 boxes (Permutation Combination)
- Replies: 6
- Views: 13390
5 Balls in 3 boxes (Permutation Combination)
Five balls of different colours are to be placed in three boxes of different sizes. Each box can hold five balls. The number of ways in which we can place the balls in the boxes so that no box remains empty is? a) 30 b) 150 c) 600 d) 900 OA b [spoiler]I solved by first placing the balls in the three...
- by Stuti567
Thu May 05, 2016 11:16 pm- Forum: Problem Solving
- Topic: 5 Balls in 3 boxes (Permutation Combination)
- Replies: 6
- Views: 13390
The Carson family will purchase three used cars. There are two models of cars available, Model A and Model B, each of which is available in four colors: blue, black, red, and green. How many different combinations of three cars can the Carsons select if all the cars are to be different colors? 24 3...
- by Stuti567
Wed May 04, 2016 11:55 pm- Forum: Problem Solving
- Topic: combinatorics problem
- Replies: 15
- Views: 9844
Hi, I understood the explanation, however, I tried a different approach to get the answer but I'm not getting it! I used the slope formula to find the equation of the line. i.e ([4-y)/(x-3)] = 2 which gives 2x + y = 10 which cannot satisfy the origin. I cannot understand the reason for this discrepa...
- by Stuti567
Mon May 02, 2016 11:28 pm- Forum: Problem Solving
- Topic: Co-ordinate planes
- Replies: 7
- Views: 5674