Search found 36 matches
The average distance between the Sun and a certain planet is approximately 23*10^14 inches. Which of the following is closest to the average distance between the Sun and the planet, in kilometres? (1 Kilometre is approximately 3.9*10^4 inches) A) 7.1*10^8 B) 5.9*10^9 C) 1.6*10^10 D) 1.6*10^11 E) 5....
- by misterholmes
Mon Mar 16, 2015 1:41 am- Forum: Problem Solving
- Topic: Q.65 Problem Solving GMAT Review 13th Edition
- Replies: 6
- Views: 5199
A poll asked 60 people what their favorite ice cream was between Vanilla, Chocolate, and Strawberry. 1/3 had Vanilla in last place. 1/2 had Vanilla ahead of Chocolate. 1/10 preferred Vanilla to Strawberry. How many people had vanilla in first place? This question has me stumped. This, as written, h...
- by misterholmes
Mon Mar 16, 2015 1:12 am- Forum: GMAT Math
- Topic: Is Vanilla Really in First?
- Replies: 8
- Views: 4254
Should i do like this A) North percentage change = 42.8 - 40/40 *100 OR B) North percentage = 42.8/40*100 if i do like A then my ans is correct. Pls suggest You should do like A, because they ask for growth, which means percentage change: (N-O)/O)*100. Your second option,(N/O)*100 is not the growth...
- by misterholmes
Fri Mar 13, 2015 2:35 am- Forum: Problem Solving
- Topic: Town X
- Replies: 9
- Views: 2979
I wouldn't follow a messy string of calculations to solve this. How much time do we have for this anyway. Better to just observe the basics: 1. We all know isosceles triangles have equal base angles. There are two isosceles triangles in this picture. Label the angels. 2. A tangent to a circle makes ...
- by misterholmes
Fri Mar 13, 2015 2:16 am- Forum: Problem Solving
- Topic: Geometry
- Replies: 3
- Views: 1989
My query is how is the case set up? Meaning, Shouldn't the probability of not getting a 6 on all 3 rounds + getting a 6 on all three rounds = 1. The setup you propose doesn't account for the cases when you get a 6 on just some of the rounds. It's not a case of all or none. Allow me to plug my GMAT ...
- by misterholmes
Thu Feb 05, 2015 1:06 pm- Forum: Problem Solving
- Topic: Manhattan Strategy Guide - Number Properties
- Replies: 5
- Views: 2313
Hi I gave my gmat in jan and scored a 710 (Q49 V39). I am planning to retake it in 3 weeks time. I would like to find out what new books/resources will be helpful in improving my score? Aiming for a 50/51 in quant and 40/41 in verbal. Someone told me that getting a 49 in quant is easy but moving be...
- by misterholmes
Fri Mar 28, 2014 9:09 am- Forum: GMAT Strategy
- Topic: How to improve a 710? Exhausted resources
- Replies: 5
- Views: 2156
It's not as bad as all that. Imagine these are the ten seats ##%%%%%%%% where the # mark indicates a girl sitting, and the % indicates an empty seat. There are 8 arrangements like this one, with the third girl sitting anywhere in the last eight seats. So 8. Moving the girls down a seat: %##%%%%%%% t...
- by misterholmes
Sun Mar 23, 2014 5:39 am- Forum: Problem Solving
- Topic: P&C- A row of seats in a movie hall..
- Replies: 3
- Views: 2155
I would just observe that each year there is 1 net new plane. So at year 6, there are 66 planes in total, of which 24 are type B. This is, by sight, less than 50%. Then I would continue in the same fashion, testing the answer choices. For example, for year 8, there are 68 planes, of which 32 are typ...
- by misterholmes
Sun Mar 23, 2014 4:43 am- Forum: Problem Solving
- Topic: Airline fleet problem
- Replies: 9
- Views: 3552
Yes you are right. It's just happens that the ratio and the quantities are equal. It's not that S:W is 10:4 and THEREFORE the quantities must be 10 oz to 4 oz. There is an intermediate step, which is algebra and involves setting up an equation (Units of S)/(Units of water)=10/4
- by misterholmes
Thu Apr 11, 2013 4:44 am- Forum: Problem Solving
- Topic: Mixture problem using Alligation
- Replies: 6
- Views: 3688
Ola!
An average of 10% splits your two percentages in ratio 4:10, or 2:5 for simplicity's sake. Reverse this ratio and you've got your oz relationship, namely 5:2 of mix to water.
10/X=5/2
Or X=4
Kind Regards,
Misterholmes
- by misterholmes
Wed Apr 10, 2013 7:24 pm- Forum: Problem Solving
- Topic: Mixture problem using Alligation
- Replies: 6
- Views: 3688
Hi, Can anyone please help me in solving the following inequalities:- (1). x/(x + 2) <= 1/x My approach :- x/(x + 2) - 1/x <= 0 After calculating, (x - 2)(x + 1) / x(x + 2) <= 0 What is after this ? how can i get the inequality ? What is the right approach ? (2). x/(x - 3) <= 1/x Please help in the...
- by misterholmes
Wed Apr 10, 2013 7:41 am- Forum: Problem Solving
- Topic: Inequality doubt
- Replies: 7
- Views: 2930
Hey! this is one of my favourite questions and I love plugin in numbers. It's like suduko on crack. And I like Anjou's graph of these functions in her link. What hasn't been duly emphasised yet, if I may, is that x is positive , and so you could just divide or multiply by x, without killing yourself...
- by misterholmes
Wed Apr 10, 2013 7:15 am- Forum: Problem Solving
- Topic: Inequality -GMAT PREP
- Replies: 5
- Views: 1996
Suggest doing the OG in sets of a page each. Wouldn't use the OG to do topic-based work, as there are quality control problems with the third party materials. You can use any old book for topic work, and save the OG for intermediate level simulations, before you try the GMAT Prep software. Kind Rega...
- by misterholmes
Wed Apr 10, 2013 6:15 am- Forum: GMAT Math
- Topic: need advice urgent!!!!
- Replies: 4
- Views: 1537
Seems a tad superfluous to multiply 450 by 11 only to have to factor it back again, given that 11 is the answer we're looking for.
- by misterholmes
Wed Apr 10, 2013 6:09 am- Forum: GMAT Math
- Topic: Prime Factor of Even Multiples of 15
- Replies: 2
- Views: 1957
Percentage is always a singular. But here they use percent, which takes its cue from the "second noun," so to speak.
Example: 65 percent of people eat fast food at least once a month, but only 30 percent of the soup was eaten today.
Kind Regards,
Misterholmes
- by misterholmes
Tue Apr 09, 2013 4:19 am- Forum: Sentence Correction
- Topic: A recent survey regarding the use of the
- Replies: 5
- Views: 1387