Search found 1144 matches
Yup answer is D
Distance traveled by both the trains would be the same.
x * 4.5 = 3.5 * a (Let a = avg. speed of Z)
a = 9/7x
Hope this helps!
- by raunekk
Tue Jun 12, 2012 5:40 am- Forum: Problem Solving
- Topic: Rate problem!
- Replies: 4
- Views: 2965
- by raunekk
Tue Jun 12, 2012 5:28 am- Forum: Problem Solving
- Topic: Square
- Replies: 4
- Views: 1304
IMO : D = 20 a = 10 pound boxes b = 20 pound boxes a+b = 30 --- (1) 10(a) +20 (b) = 30* 18 ( given) 10a + 20 b = 540 --(2) Solving 1 & 2, a= 6, b = 24 To reduce average to 14 by removing some 20 pound boxes We use equation (2) to form new equation for average 14 10(6) + 20 (24-x) = 14 (30-x) ( W...
- by raunekk
Tue Jun 12, 2012 5:13 am- Forum: Problem Solving
- Topic: Weight average
- Replies: 2
- Views: 1357
@Bill Can you please explain me the bold line. I am finding it difficult to figure how it would increase by 0.2 I. If all 10 of the terms with even tenths digits have a tenths digit of 8, then rounding up to the nearest integer increases the term by .2 ; .2*10 gives a total increase of 2. If all 20 ...
- by raunekk
Sat Apr 07, 2012 10:33 am- Forum: Problem Solving
- Topic: List T OG
- Replies: 7
- Views: 5037
- by raunekk
Fri Apr 06, 2012 5:15 am- Forum: Problem Solving
- Topic: MGMAT probability - need expert help
- Replies: 15
- Views: 3179
@Bill
If the question would have mentioned - Red ONLY at the third time (not the first and second time), then the answer would have been :
NR-NR-R: 6/8 * 5/7 * 2/6 = 10/56
right?
Thanks in advance.
- by raunekk
Thu Apr 05, 2012 3:17 am- Forum: Problem Solving
- Topic: probability
- Replies: 6
- Views: 1647
- by raunekk
Tue Feb 21, 2012 2:09 am- Forum: Problem Solving
- Topic: Counting....Challenging
- Replies: 6
- Views: 1538
Thanks Guys !!
The Answer is indeed 264,000
Guess I took too many variables and got confused in the process.
Thanks!
- by raunekk
Wed Jun 15, 2011 3:15 am- Forum: Problem Solving
- Topic: Average Problem
- Replies: 6
- Views: 3815
Average Problem
During 2005, a company produced an average of 2000 products per month. How many products will the company need to produce from 2006 through 2008 in order to increase its monthly average for the period from 2005 through 2008 by 200% over its 2005 average? 1) 148000 2) 172000 3) 200000 4) 264000 5) 28...
- by raunekk
Wed Jun 15, 2011 1:32 am- Forum: Problem Solving
- Topic: Average Problem
- Replies: 6
- Views: 3815
@Stuart Kovinsky
I agree with you!! It's from the question bank of one of the best GMAT coaching classes in India ( I wouldn't name the classes, but yes the language used is serious embarrassing!)
- by raunekk
Tue Jun 07, 2011 9:48 pm- Forum: Problem Solving
- Topic: 3 Alligations and Mixtures Sums
- Replies: 9
- Views: 41986
@ Frankenstein
Perfect!!
@cans
Can you explain me what is X in the 3rd one and how did u form equations using the same..
- by raunekk
Tue Jun 07, 2011 9:39 pm- Forum: Problem Solving
- Topic: 3 Alligations and Mixtures Sums
- Replies: 9
- Views: 41986
OA guys
1) [spoiler]1) 1:2[/spoiler]
2) [spoiler]a) 1:6[/spoiler]
3)[spoiler]d) 7 :9[/spoiler]
Thanks..
- by raunekk
Tue Jun 07, 2011 9:35 pm- Forum: Problem Solving
- Topic: 3 Alligations and Mixtures Sums
- Replies: 9
- Views: 41986
3 Alligations and Mixtures Sums
1) In what ratio must water be mixed with milk costing Rs 12 per liter to obtain mixture worth Rs 8 per litre? 1) 1:2 2) 2:1 3) 2:3 4) 3:2 4) 4:3 2) In what ratio must water be mixed with milk to gain 16 2/3 % (50/3%) on selling the mixture at the cost price? a) 1:6 b) 6:1 c) 2:3 d) 4:3 e) none of t...
- by raunekk
Tue Jun 07, 2011 12:06 pm- Forum: Problem Solving
- Topic: 3 Alligations and Mixtures Sums
- Replies: 9
- Views: 41986
HCF number pairs
Q) The number of number-pairs lying between 40 and 100 with their HCF as 15 is:
1)3
2)4
3)5
4)6
5)7
I tried the concept of consecutive multiples HCF, but not getting the answer.
OA [spoiler]2)4[/spoiler]
- by raunekk
Sat May 21, 2011 11:12 pm- Forum: Problem Solving
- Topic: HCF number pairs
- Replies: 2
- Views: 7137
But why did you do 2.S?
I mean, what was the thought process that you to that approach?
Thanks in advance!
- by raunekk
Sat May 21, 2011 11:08 pm- Forum: Problem Solving
- Topic: Find the sum
- Replies: 4
- Views: 5570