## Search found 11 matches

#### A group of 30 employees working 4 hours a day can complete a project in 10 days. What is the number of days in which

###### Problem Solving

##### Re: A group of 30 employees working 4 hours a day can complete a project in 10 days. What is the number of days in which

First, let's find relationship between employees of second group and first group Let rate of work of employees of first group be R1, and that of second group be R2 (2 employees) * R1 work/(hour*employee) * (2 hours) = (4 employees) * R2 work/(hour * employee) * (1 hours) R1 = R2 So this means employ...

- by hahahehe

Mon Jul 27, 2020 11:08 pm- Forum: Problem Solving
- Topic: A group of 30 employees working 4 hours a day can complete a project in 10 days. What is the number of days in which
- Replies:
**3** - Views:
**189**

#### Eight friends met for lunch at an expensive restaurant, and everyone decided to contribute equally to the total bill of

###### Problem Solving

##### Re: Eight friends met for lunch at an expensive restaurant, and everyone decided to contribute equally to the total bill

final bill to be paid = 480 - (25% of 480) = 480 - 0.25*480 = 360

8 friends equally pay this amount. So one friend pays 360/8 = $45

- by hahahehe

Mon Jul 27, 2020 10:53 pm- Forum: Problem Solving
- Topic: Eight friends met for lunch at an expensive restaurant, and everyone decided to contribute equally to the total bill of
- Replies:
**2** - Views:
**194**

##### Replies not posted

Hi,

I've posted answers to some posts. What is the approximate time in which they get approved? Also, where can I see my points?

Thanks

- by hahahehe

Sat Jul 25, 2020 11:21 pm- Forum: Suggestions and Feedback
- Topic: Replies not posted
- Replies:
**0** - Views:
**204**

##### Re: GMAT prep question-Confusing one !

The question means, that airline carriers are aiming at increasing profits. They aim to do so not by increasing the number of flights, but by using larger planes. So there has to be an element of contrast in the sentence. Only D offers this. Some people might be hesitant to choose D as it may seem t...

- by hahahehe

Sat Jul 25, 2020 11:11 pm- Forum: Sentence Correction
- Topic: GMAT prep question-Confusing one !
- Replies:
**8** - Views:
**5280**

#### In the figure above, segments RS and TU represent two positions of the same ladder leaning against the side SV of a

###### Data Sufficiency

##### Re: In the figure above, segments RS and TU represent two positions of the same ladder leaning against the side SV of a

I won't take out the final numbers, but rather tell how you should do in exam. First rule, in a triangle, if you know the length of a side and both of the angles associated with that side, you will be able to construct the triangle uniquely. Try it out, fix the base, and decide on two angles that th...

- by hahahehe

Sat Jul 25, 2020 5:00 am- Forum: Data Sufficiency
- Topic: In the figure above, segments RS and TU represent two positions of the same ladder leaning against the side SV of a
- Replies:
**2** - Views:
**128**

##### Re: If \(a\) and \(b\) are positive integers, is \(a\) a multiple of \(b?\)

let's evaluate statement 1. Let B's distinct prime factors be: 2, 3, 5 Now B can be 2*3*5, or it can be 2*2*3*5.. or basically anything in the form (2^x)*(3^y)*(5^z) Now, we know a has all the prime factors that B has, as its own prime factors, and it can also have more. A can be = 2*3*5, or 2*3*5*7...

- by hahahehe

Sat Jul 25, 2020 4:42 am- Forum: Data Sufficiency
- Topic: If \(a\) and \(b\) are positive integers, is \(a\) a multiple of \(b?\)
- Replies:
**2** - Views:
**134**

#### Three friends, A, B and C have houses along a straight road, in that order. If all three want to meet...

###### Data Sufficiency

##### Re: Three friends, A, B and C have houses along a straight road, in that order. If all three want to meet...

Since B's house lies between A's and C's, this is the only possible picture that we can draw: A <--- 2 ---> B <--- 6 ---> C The minimum combined distance that the 3 friends have to travel will be in the case when they meet at B's house, in which case, A will travel 2 miles, and C will travel 6 miles...

- by hahahehe

Sat Jul 25, 2020 4:34 am- Forum: Data Sufficiency
- Topic: Three friends, A, B and C have houses along a straight road, in that order. If all three want to meet...
- Replies:
**1** - Views:
**111**

#### There are 8 magazines lying on a table; 4 are fashion magazines and the other 4 are sports magazines...

###### Problem Solving

##### Re: There are 8 magazines lying on a table; 4 are fashion magazines and the other 4 are sports magazines...

We have 4 Sports magazines, and 4 Fashion magazines We have to select 3 magazines Total ways of selecting 3 magazines out of these 8 -> 8C3 (8 choose 3) = 8!/(3! * 5!) = 56 Now we need probability that "at least one" of the fashion magazines will be selected. This scenario would include: selection o...

- by hahahehe

Sat Jul 25, 2020 4:25 am- Forum: Problem Solving
- Topic: There are 8 magazines lying on a table; 4 are fashion magazines and the other 4 are sports magazines...
- Replies:
**2** - Views:
**158**

#### During a sale, the original price of a garment is lowered by 20%. Because the garment did not sell, its sale price...

###### Problem Solving

##### Re: During a sale, the original price of a garment is lowered by 20%. Because the garment did not sell, its sale price..

In questions dealing with percentages, it is helpful to start with 100 as the initial number Let us assume original price was 100 During sale it's lowered by 20% -> so price becomes -> 80 Now, it was further reduced by 10%. This 10% is of the current price, and not original price. So new price -> 80...

- by hahahehe

Sat Jul 25, 2020 4:17 am- Forum: Problem Solving
- Topic: During a sale, the original price of a garment is lowered by 20%. Because the garment did not sell, its sale price...
- Replies:
**1** - Views:
**80**

#### 35% of all Huhulians own at least one TV. 24% of Huhulians who own at least one TV own at least four TV’s. What percent

###### Problem Solving

##### Re: 35% of all Huhulians own at least one TV. 24% of Huhulians who own at least one TV own at least four TV’s. What perc

Let total population be 100 Now 35% own at least one TV So, 35 Huhulians own at least 1 TV, and 65 own none. 24% of these 35 people, own at least 4 TVs 24% of 35 = 0.24*35 = 8.4 (People cannot be in decimals, but since I assumed 100 as the starting number, we can let this slide) Voila! we've arrived...

- by hahahehe

Sat Jul 25, 2020 4:13 am- Forum: Problem Solving
- Topic: 35% of all Huhulians own at least one TV. 24% of Huhulians who own at least one TV own at least four TV’s. What percent
- Replies:
**2** - Views:
**171**

#### At a restaurant, all tips are added together to be split among the employees at the end of a shift...

###### Problem Solving

##### Re: At a restaurant, all tips are added together to be split among the employees at the end of a shift...

Let total collected amount be X

Now waiters get = (2/3) X

So individual waiter gets: (2/3)X / 4 = X/6

Manager gets = X/4

Busboy gets = Total - waiters' share - manager's share = X - 2X/3 - X/4 = X/12

Now one waiter's share + busboy's share = X/6 + X/12 = X/4

X/4 is said to be $30

X/4 = 30

X = $120

- by hahahehe

Sat Jul 25, 2020 4:10 am- Forum: Problem Solving
- Topic: At a restaurant, all tips are added together to be split among the employees at the end of a shift...
- Replies:
**3** - Views:
**96**