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Thanks for the reply Anurag. But I have a question (perhaps a mental block that I can't seem to get around..) but if in the first stem, I assume that there N1, N2...Nn (n - some finite number) of schools and as each school's average equals 12, 12=S1/N1 ===>S1=12(N1), S2= 12(N2) and so on.. So should...

by sampath

Wed Jul 06, 2011 1:48 am
Forum: Data Sufficiency
Topic: Mean Problem
Replies: 4
Views: 1139

Mean Problem

What is the mean age of all students of the city's schools?
1. The average age of the students in each of the city's schools is 12
2. The number of students in each of the city's schools is 70

by sampath

Wed Jul 06, 2011 12:55 am
Forum: Data Sufficiency
Topic: Mean Problem
Replies: 4
Views: 1139

Earnings in Ratio

For every dollar Jim earns, Joan earns $1.5 and for every two dollars Joan
earns, Sam earns $1.6. If Sam earned $300, how much did Jim earn?

by sampath

Tue Jul 05, 2011 11:39 pm
Forum: Problem Solving
Topic: Earnings in Ratio
Replies: 1
Views: 1345

Percent Smaller

0.375 is what percent smaller than 5/4?

by sampath

Tue Jul 05, 2011 11:36 pm
Forum: Problem Solving
Topic: Percent Smaller
Replies: 1
Views: 2154

I don't think the answer is 36pi it is only the centre. To find the area , we have to determine the radius, which according to the Q stem can be derived from the two points at which the circle intersects at x axis, say (x,0) and (-x,0). The distance given between the two points is 16, sqrt((2x)^2)=1...

by sampath

Tue Jul 05, 2011 11:13 pm
Forum: Problem Solving
Topic: Area
Replies: 11
Views: 2326

Problem of X

How many integers X are there between 21 and 51 inclusive such that X^3 is divisible by both 3 and 5

by sampath

Tue Jul 05, 2011 10:52 pm
Forum: Problem Solving
Topic: Problem of X
Replies: 2
Views: 1040

Powers to be

Is A^B positive?
1. B^A is positive
2. B is negative

by sampath

Tue Jul 05, 2011 10:47 pm
Forum: Data Sufficiency
Topic: Powers to be
Replies: 2
Views: 911

Area

The center of the circle is at point (0,6). If the distance between the two points
where the circle intersects the x-axis is 16, what is the area of the circle?

by sampath

Tue Jul 05, 2011 10:45 pm
Forum: Problem Solving
Topic: Area
Replies: 11
Views: 2326

Red Beans

Three piles of 7 beans each are to be made from
10 red, 5 yellow, and 6 green beans. If all of
the beans must be used and each stack must
contain at least one bean of each color, then
what is the maximum number of red beans that can
be put in one of the stacks?

by sampath

Tue Jul 05, 2011 7:11 am
Forum: Problem Solving
Topic: Red Beans
Replies: 4
Views: 1639
by sampath

Tue Jul 05, 2011 7:04 am
Forum: Data Sufficiency
Topic: Absolute Question
Replies: 4
Views: 1018

Divisibility Problem

If x and y are positive integers, is the integer 10^x-y divisible by 9 ?
1. y is divisible by 3
2. (10^x + y ) is not divisible by 9

by sampath

Tue Jul 05, 2011 6:11 am
Forum: Data Sufficiency
Topic: Divisibility Problem
Replies: 5
Views: 1199

Divisibility Problem

Sorry was posted in the wrong forum by mistake

by sampath

Tue Jul 05, 2011 6:09 am
Forum: Problem Solving
Topic: Divisibility Problem
Replies: 0
Views: 780

Absolute Value

Is |a| = b - c ?
(1) a + c != b
(2) a < 0

I got the answer as E but OA is C

Thanks.

by sampath

Wed Jun 22, 2011 11:34 pm
Forum: Data Sufficiency
Topic: Absolute Value
Replies: 3
Views: 902

Absolute Value

posted by mistake in the wrong forum, will post it in the DS forum.

by sampath

Wed Jun 22, 2011 11:32 pm
Forum: Problem Solving
Topic: Absolute Value
Replies: 0
Views: 771

Got a 660 - Looking for GMAT Classes in Bangalore

Hi All

I scored 660 in gmat last year and have been preparing to retake the test since then. Could anyone suggest which is the best gmat coaching class in Bangalore. I really need some guidance and would appreciate some sincere advice.

Thanks.

by sampath

Thu Jun 02, 2011 9:33 am
Forum: I just Beat The GMAT!
Topic: Got a 660 - Looking for GMAT Classes in Bangalore
Replies: 15
Views: 21358