## Search found 83 matches

##### Play performance

For a recent play performance, the ticket prices were $25 per adult and $15 per child. A total of 500 tickets were sold for the performance. How many of the tickets sold were for adults? (1) Revenue from ticket sales for this performance totaled $10,500. (2) The average (arithmetic mean) price per t...

- by hjafferi

Mon Jun 24, 2013 11:45 am- Forum: Problem Solving
- Topic: Play performance
- Replies:
**1** - Views:
**1297**

##### Five Balls of different colour

There are 5 balls of different colours and 5 boxes of colours the same as those of the balls. Number of ways in which the balls, one in each box can be placed such that a ball does not go to a box of its own colour is

- by hjafferi

Mon Jun 24, 2013 9:55 am- Forum: Problem Solving
- Topic: Five Balls of different colour
- Replies:
**1** - Views:
**1636**

thanks...great way to solve....:) but i have my doubts. If i put in value of x as 20 and y as 80. the sum is 100 and the total passed are 51. Hence the percentage is more than 50%. Similarly as you have put in value of x as 20 and y as 40. the passing percentage is less than 50%. Similarly for premi...

- by hjafferi

Mon Jun 24, 2013 8:19 am- Forum: Data Sufficiency
- Topic: Students in Class
- Replies:
**3** - Views:
**1649**

##### Students in Class

Of the students in the class, 55% of the females and 35% of the males passed the exam. Did more than half the students pass the exam?

1) More than half the students in the class are females

2) The number of female students is 20 more than the the number of male students.

- by hjafferi

Sun Jun 23, 2013 11:34 am- Forum: Data Sufficiency
- Topic: Students in Class
- Replies:
**3** - Views:
**1649**

##### Integer Question

Could the answer be an integer if x is an integer greater than 1

a) X^10 + X^(-10)

b) X^(1/6) + X^(1/2)

- by hjafferi

Sun Jun 23, 2013 9:50 am- Forum: Problem Solving
- Topic: Integer Question
- Replies:
**1** - Views:
**1458**

##### Repeated outcomes questions

Qs. 1 : Ann is making fruit basket with 3 apples, 4 plums and 2 grapefruits. If she can include however many fruits as she wants in hte basket as long as there are some fruits in the basket. how many different choices does she have? (assuming the furits are all different from each other) Qs. 2 : Ann...

- by hjafferi

Sun Jun 23, 2013 9:22 am- Forum: Problem Solving
- Topic: Repeated outcomes questions
- Replies:
**2** - Views:
**1707**

##### Group of Students

In a group of 30 students, 25 are taking mathematics, 22 English and 19 history. Every student is taking at least one of the courses. The greatest number of students who could be taking all three courses is x. The least number of students who could be taking all three courses is y. What is the value...

- by hjafferi

Mon Jun 10, 2013 10:58 am- Forum: Problem Solving
- Topic: Group of Students
- Replies:
**3** - Views:
**1966**

##### Distribution centers

Came across this question in a older forum. a company has 15 disrtibution centres and uses color coding to identify each center.either a single color or a pair of two different colors is chosen to represent each center uniquely.what is the mnimum number of colors needed for the coding and the order ...

- by hjafferi

Mon Jun 10, 2013 8:56 am- Forum: Problem Solving
- Topic: Distribution centers
- Replies:
**7** - Views:
**3129**

Answer: D

mean = 10

sd = 0.3

"one standard deviation" = 1*(sd) = 0.3.

1 stdev range would be mean plus/ minus std Dev

Lower range:10 - 0.3 = 9.7

Higher range:10 + 0.3 = 10.3

6 numbers out of 8 fall within the range

Then 6/8 or 3/4 are within range

3/4 = 75%

Hence answer is D

- by hjafferi

Fri Nov 02, 2012 2:14 am- Forum: Problem Solving
- Topic: within 1 standard deviation
- Replies:
**3** - Views:
**3882**

B If a^x = b then a = b^(1/x) similarly b= c^(1/y) and c=a^(1/z) Put value of c in equation 2 b=[a^(1/z)]^(1/y) Therefore b= a^(1/(ya)) But b= a^x then A^x=a^(1/(ya)) Taking root x on both sides A=a^(1/(xyz)) Since bases are same powers would have to be same 1/(xyz) = 1 Xyz=1 Hence B is the correct ...

- by hjafferi

Wed Sep 05, 2012 5:54 am- Forum: Problem Solving
- Topic: Source - GMAT Math Bible - Nova - Equations
- Replies:
**5** - Views:
**1368**

IMO A

Statement 1: even - even - odd is odd. Hence statement 1 is sufficient

Statement 2: what if two integers are odd try putting in 5,6 and 7 result would be even.

Also I try to put in -1,0,1 to check if the rule holds. In this case it does not. Hence statement 2 is insufficient

- by hjafferi

Wed Sep 05, 2012 5:31 am- Forum: Data Sufficiency
- Topic: k – m – p odd?
- Replies:
**10** - Views:
**6698**

- by hjafferi

Fri Aug 31, 2012 10:07 pm- Forum: Data Sufficiency
- Topic: What is the value of y? - Need help
- Replies:
**4** - Views:
**1141**

A

Plug in different numbers, we would get that only statement 1 is sufficient. Whereas statement 2 is insufficient

- by hjafferi

Fri Aug 31, 2012 7:08 am- Forum: Data Sufficiency
- Topic: Beat the GMAT question - Brilliant
- Replies:
**25** - Views:
**12320**

IMO B

Statement 1 plug in 1,2. This does not provide any concrete info. Statement 1 is not satisfactory

In statement 2lug in the lowest value y can have I.e 1. This results in the expression value in excess of 1000. Hence statement 1 must be correct.

- by hjafferi

Fri Aug 31, 2012 6:56 am- Forum: Data Sufficiency
- Topic: X/Y^N
- Replies:
**5** - Views:
**1448**

IMO E Plug in 1 and 3 in statement 1. Both values satisfy. So no concrete answer can be obtained. Therefore equation 1 is not satisfactory. Factories statement 2. Two factors 1 and 3. Again no single answer? Hence statement 2 is not satisfactory. Combing both equations no additional info can be obta...

- by hjafferi

Fri Aug 31, 2012 6:33 am- Forum: Data Sufficiency
- Topic: X
- Replies:
**4** - Views:
**1305**