Search found 23 matches


This sounds great!

Name: Katherine
email: [email protected]

by kath_the_great4

Wed Jul 15, 2009 6:16 pm
Forum: Lounge
Topic: FREE Live Online GMAT Math Session
Replies: 11
Views: 4740

1 is insignificant when you are dealing with numbers in the thousands...we are not looking for an exact response here.

by kath_the_great4

Sun Jul 05, 2009 7:15 pm
Forum: Problem Solving
Topic: circular gears
Replies: 6
Views: 1666

Gmat Prep- triangles

What is the greatest possible area of a triangular region with vertex at centre of circle and two other vertices on the circle? (radius of 1)

[spoiler]1/2[/spoiler]

by kath_the_great4

Mon Nov 10, 2008 4:21 pm
Forum: Problem Solving
Topic: Gmat Prep- triangles
Replies: 2
Views: 2015

Value

what is the value of a^4-b^4?

1) a^2-b^2=16
2)a+b=8

by kath_the_great4

Tue Oct 28, 2008 9:19 pm
Forum: Data Sufficiency
Topic: Value
Replies: 1
Views: 1434

Discounts

Henry purchased 3 items. He received a 20% discount off the price of the most expensive item and a 10% discount off each of the other 2 items. Was the total amount of the 3 discounts greater than 15% of the sum of the total of the 3 discounts? 1) Regular price of the most expensive item was 50$ and ...

by kath_the_great4

Tue Oct 28, 2008 9:05 pm
Forum: Data Sufficiency
Topic: Discounts
Replies: 3
Views: 1585

Discounts

Henry purchased 3 items. He received a 20% discount off the price of the most expensive item and a 10% discount off each of the other 2 items. Was the total amount of the 3 discounts greater than 15% of the sum of the total of the 3 discounts? 1) Regular price of the most expensive item was 50$ and ...

by kath_the_great4

Tue Oct 28, 2008 9:04 pm
Forum: Data Sufficiency
Topic: Discounts
Replies: 3
Views: 1652

Negatives

Is X negative?

1) X^3(1-X^2)<0
2)(X^2)-1<0

OA: C

by kath_the_great4

Tue Oct 28, 2008 8:53 pm
Forum: Data Sufficiency
Topic: Negatives
Replies: 1
Views: 1194

Units Digit

what is the units digit of (13^4)(17^2)(29^3)?

thanks in advance.

by kath_the_great4

Mon Oct 27, 2008 1:01 pm
Forum: Problem Solving
Topic: Units Digit
Replies: 11
Views: 14268

Individually: both insufficient

Togethor: we can definitively say that y can never be in the circle since if X is .5 outside the circle in the circular plane and the distance between x and y is 9 than y itself must be .5 outside the circle since the diameter is 8.

hope this helps.

by kath_the_great4

Mon Oct 27, 2008 4:59 am
Forum: Data Sufficiency
Topic: geo / circles
Replies: 2
Views: 1434

let x be number of balls ordered of either color.

6/5= x+30/x
6x=5x + 150
x= 150

total order is 2x = 300 (since equal number of both colors ordered)

by kath_the_great4

Sun Oct 26, 2008 2:21 pm
Forum: Problem Solving
Topic: RATIOS QUESTION - BRAIN FREEZE!!!!!
Replies: 6
Views: 2683

just remember BEDMAS---solve whats in Brackets before applying Exponents.

by kath_the_great4

Sun Oct 26, 2008 1:02 pm
Forum: Problem Solving
Topic: EXPONENT RULES
Replies: 6
Views: 1776

Ratios

please see attached.

by kath_the_great4

Sun Oct 26, 2008 12:46 pm
Forum: Data Sufficiency
Topic: Ratios
Replies: 1
Views: 1128

Ratios

please see attached. Thank You.

by kath_the_great4

Sun Oct 26, 2008 12:45 pm
Forum: Problem Solving
Topic: Ratios
Replies: 1
Views: 1239

LCM

What is the smallest possible common multiple of 2 numbers greater than 250?

OA is 251

How is this possible? wouldn't that be the lowest common FACTOR not multiple?

Someone please explain the logic. Thanks.

by kath_the_great4

Tue Oct 21, 2008 5:09 pm
Forum: Problem Solving
Topic: LCM
Replies: 3
Views: 1664

prob prob

If the chances of hitting a target is 1/4, in 5 attempts, what are the chances of hitting the target atleast 2 times?

Thanks!

by kath_the_great4

Sun Sep 28, 2008 6:58 am
Forum: Problem Solving
Topic: prob prob
Replies: 5
Views: 1340