Search found 22 matches


IMO B

What's the OA?

by [email protected]

Mon Aug 17, 2009 10:51 am
Forum: Critical Reasoning
Topic: Parking policy
Replies: 15
Views: 2000

IMO A

Could you pls. confirm the OA?

by [email protected]

Mon Aug 17, 2009 10:49 am
Forum: Critical Reasoning
Topic: Ivory trade
Replies: 11
Views: 1389

IMO A

What's the OA?

by [email protected]

Mon Aug 17, 2009 10:44 am
Forum: Critical Reasoning
Topic: Bad teaching
Replies: 10
Views: 1566
by [email protected]

Mon Aug 17, 2009 10:42 am
Forum: Critical Reasoning
Topic: Politician's argument
Replies: 15
Views: 2404

Is this a GMAT kind of question?

by [email protected]

Mon Aug 17, 2009 1:11 am
Forum: Problem Solving
Topic: die and coin
Replies: 5
Views: 955

Let people that did not join any class = x

For Overlapping Sets:
Total= Group 1 + Group 2 + Group 3 - (Sum of 2 Group Overlaps) -(2* All Three) + Neither

=> 100 = 23+22+34 - 12-6+x
=> 39% - Ans.

HTH


probability that a contestant does not taste all of the samples = 1 - probability that a contestant tastes all of the samples now, lets calculate probability that a contestant tastes all of the samples. there are 3 cases for this, as there are three samples i. e. 2,1,1(two cups of 1st sample, 1 cup ...

by [email protected]

Thu Aug 13, 2009 9:01 pm
Forum: Problem Solving
Topic: Probability
Replies: 15
Views: 3126

As per Formula:

(Mean% - % of Lower Concentration) / (% of Higher Concentration-Mean)= (Ratio of qty of Lower Conc [x] / (Ratio of qty of Higher Conc [y]

=> (35%-25%)/(40%-35%) = x/y
=> 10/5 = x/y
=> x+y =15

Therfore, Quantity of Higher conc. replaced = (x/x+y)=5/15=1/3

Ans 1/3

by [email protected]

Wed Aug 12, 2009 10:00 pm
Forum: Problem Solving
Topic: question in percentage
Replies: 4
Views: 1007

Dear Godemol,
You forgot to add the 150 & 725 of container A to your 7125 Ans.

7125 + 875= 8000

Regards

by [email protected]

Tue Aug 11, 2009 11:35 am
Forum: Problem Solving
Topic: proportions q.
Replies: 5
Views: 2416
by [email protected]

Mon Aug 03, 2009 12:13 pm
Forum: Critical Reasoning
Topic: Role of the response
Replies: 12
Views: 1655
by [email protected]

Mon Aug 03, 2009 11:47 am
Forum: Critical Reasoning
Topic: Shy Aadolescents
Replies: 16
Views: 3156

Robin,

Are the answer choices correct? - don't see $990.

by [email protected]

Wed Jul 29, 2009 12:49 am
Forum: Problem Solving
Topic: If a 10 percent
Replies: 3
Views: 3751

The probability of having a girl in all 3 cases is :
=> 1/2*1/2*1/2= 1/8

The probability of NOT having a boy in all 3 cases is :
=> 1/2*1/2*1/2= 1/8

Therefore the probability of having a girl and not a boy will be;

=> 1/8 +1/8
=> 2/8
=> 1/4

Ans : 1/4

by [email protected]

Tue Jul 21, 2009 11:31 am
Forum: Problem Solving
Topic: Probability
Replies: 35
Views: 21324

Thanks trueplayer,

But if you could please explain why you multiplied 75 by 3/5?

Regards,
Niharika.

by [email protected]

Tue Jul 21, 2009 6:19 am
Forum: Problem Solving
Topic: Problem Solving- Weighted Average
Replies: 5
Views: 2989

Since BE is ll to CD that makes triangle ABE and triangle ACD similar triangles. Hence AB/AC = AE / AD = BE / CD now we can get AB=3, AE = 4, BE=5 AC= 6, CD = 10, AD = 8. Area of triangle ABE = sqrt(s*(s-a)*(s-b)*(s-c)) Where s=(a+b+c)/2. Solving this we will get Area of ABE= sqrt 36 = 6 Area of ACD...

by [email protected]

Sun Jul 19, 2009 10:27 pm
Forum: Problem Solving
Topic: Area of the trapeziod
Replies: 4
Views: 3897