## Search found 22 matches

- by Rajani

Thu Sep 03, 2009 5:49 am- Forum: Problem Solving
- Topic: coordinate geometry/probability
- Replies:
**2** - Views:
**1031**

##### coordinate geometry/probability

1. In a xy plane at what 2 points dpes the line y = (x+a)(x+b) intersec the x-axis. a. a+b=-1 b. the graph intersects the y axis at (0,-6) 2. A decorater has to choose 2 chairs and 2 tables from a warehouse such that all are diffrent. if there are 5 diffrent chairs and 150 combinations possible, how...

- by Rajani

Thu Sep 03, 2009 3:53 am- Forum: Problem Solving
- Topic: coordinate geometry/probability
- Replies:
**2** - Views:
**1031**

or is it this way !!

from b . y=0 so even x could be x=0 . in tht case x-y =0 is not greater than 0.

hence the OA is A.

Hussh!! self solve ..

- by Rajani

Thu Aug 27, 2009 5:45 am- Forum: Data Sufficiency
- Topic: modulus
- Replies:
**6** - Views:
**1215**

I did it this way -

xy+z=z

xy = 0

i.e x=0 or y = 0

so a. x!0 then y = 0, so |x-y| will be greater than 0

frm b. y=0 so x!0, so |x-y| again > 0.

so D but ans is A .. ??

- by Rajani

Thu Aug 27, 2009 5:24 am- Forum: Data Sufficiency
- Topic: modulus
- Replies:
**6** - Views:
**1215**

- by Rajani

Thu Aug 27, 2009 5:09 am- Forum: Data Sufficiency
- Topic: modulus
- Replies:
**6** - Views:
**1215**

- by Rajani

Mon Aug 24, 2009 2:32 am- Forum: Data Sufficiency
- Topic: int
- Replies:
**2** - Views:
**991**

##### Slope

Circle C and line k lie in the xy plane. If centre of C lie on origin and has radius 1, does line k intersect circle C ?

a. the x intercept of line k is greater than 1.

b. the slope of the line is -1/10.

- by Rajani

Mon Aug 24, 2009 2:13 am- Forum: Data Sufficiency
- Topic: Slope
- Replies:
**3** - Views:
**1229**

##### Just as.. so / Just like ... so

1. Just as William Shakespeare was the preeminent poet of England, so Robert Frost was the preeminent poet of the United States (A) Just like William Shakespeare was the preeminent poet of England, so Robert Frost (B) Just as William Shakespeare was the preeminent poet of England, so Robert Frost (C...

- by Rajani

Tue Aug 11, 2009 10:16 pm- Forum: Sentence Correction
- Topic: Just as.. so / Just like ... so
- Replies:
**3** - Views:
**8715**

##### lemonade

A lemonade stand sold only small and large cups of lemonade on Tuesday. 3/5 of the cups sold were small and the rest were large. If the large cups were sold for 7/6 as much as the small cups, what fraction of Tuesday's total revenue was from the sale of large cups? 7/16 7/15 10/21 17/35 1/2

- by Rajani

Sun Aug 09, 2009 10:54 pm- Forum: Problem Solving
- Topic: lemonade
- Replies:
**2** - Views:
**1339**

- by Rajani

Sun Aug 09, 2009 10:13 pm- Forum: Data Sufficiency
- Topic: Modulus
- Replies:
**2** - Views:
**873**

- by Rajani

Mon Aug 03, 2009 4:26 am- Forum: Problem Solving
- Topic: 12 teams!
- Replies:
**5** - Views:
**13278**

A AA - 2

B AB - 2

C AC BC - 3 (ALPHABETIC OREDR TO BE MAINTAINED)

D AD BD CD - 4

E - 1

2+ 2 +3+ 4 + 1 = 12 and alphabets used 5

- by Rajani

Wed Jul 29, 2009 5:42 am- Forum: Problem Solving
- Topic: Medical experiment
- Replies:
**6** - Views:
**6234**

there is a prob in ur vase 2: u havent selected any of the -4 marbles

still the ans must b E as we can it can be 13 marbles too

5x(7)-3(5)-4(1) = 16 and picks 7+5+1=13

- by Rajani

Mon Jul 27, 2009 9:54 pm- Forum: Data Sufficiency
- Topic: DS-game
- Replies:
**5** - Views:
**1450**

stsmt one - it can be fractions .. say -1/2 and -1/4. still not sufficient

stmt 2 - chose m = -3 and n = -2 m-n = -1 > n (-2) m/n 3/2 >1

next chose m = -2 and n = -3; m-n = 1 (> n) and 2/3 < 1

togetehr they make no sense so ans = E

- by Rajani

Mon Jul 27, 2009 9:42 pm- Forum: Data Sufficiency
- Topic: Inequalities
- Replies:
**10** - Views:
**1370**

- by Rajani

Mon Jul 27, 2009 8:55 pm- Forum: Sentence Correction
- Topic: February
- Replies:
**3** - Views:
**1056**