Search found 15 matches


Interger problems

A, B and C are 3 different positive integers. ABC is a three digit integer. What is the maximum possible number for ABC - CBA. What are the different multiples of the new number.

by gopinathhyd

Mon Mar 19, 2012 7:46 am
Forum: Problem Solving
Topic: Interger problems
Replies: 3
Views: 2839

I need help!

I am a MS in Biotechnology. I have been preparing for GMAT since a year. I have to improve my score. I am not able to understand where I am wrong. I took GMAT twice and both the time I got 560. My recent practice tests after the first GMAT are GMAT PREP . 640 (48Q/28V) At this point I prepared a lot...

by gopinathhyd

Sun Mar 18, 2012 6:17 am
Forum: GMAT Strategy
Topic: I need help!
Replies: 1
Views: 1216

integer problem

1. If A, B and C are all positive integers. and three digit number ABC - CBA is divisible by 7. How many different numbers are possible divisors for 7.


(Can any one suggest me good material for practice, which has more venn diagrams and tables.)

by gopinathhyd

Sun Mar 18, 2012 6:12 am
Forum: Problem Solving
Topic: integer problem
Replies: 5
Views: 1330

Private tutor needed

I am a MS in Biotechnology. I have been preparing for GMAT since a year. I have to improve my score. I am not able to understand where I am wrong. I took GMAT twice and both the time I got 560. My recent practice tests after the first GMAT are GMAT PREP . 640 (48Q/28V) At this point I prepared a lot...

by gopinathhyd

Sat Mar 17, 2012 12:28 pm
Forum: GMAT Strategy
Topic: Private tutor needed
Replies: 0
Views: 1038

since we are given 1 equation, from which we can get dq + 24 = x (imagine q as quotient)any way Q is common in all our reactions. St.1 gives us one more equation dQ + 23 = 2X (using this equation we can calulate X = -1. so we can find d. SUFFICIENT St.2 Gives another similar equation . Sufficient. I...

by gopinathhyd

Sun Mar 11, 2012 12:37 pm
Forum: Data Sufficiency
Topic: Divisor Test - Gmat-Math Blogspot
Replies: 5
Views: 2542

Even I thought C, but ans was B, I did not understand,

Since the question does not say anything on positive and negative numbers,(we get two different answers when we consider -ve odd consecutive and all +ve odd consecutives,) I think the question is wrong in magoosh, or my solution is wrong.

by gopinathhyd

Sat Mar 10, 2012 7:11 am
Forum: Data Sufficiency
Topic: consecutive odd (magoosh - very hard)
Replies: 3
Views: 1140

consecutive odd (magoosh - very hard)

Set K consists of a finite number of consecutive odd integers. If x is the smallest number in K and y is the greatest, then y - x =

(1) The average (arithmetic mean) of set K is –36.

(2) There are 8 numbers in set K.

by gopinathhyd

Sat Mar 10, 2012 6:30 am
Forum: Data Sufficiency
Topic: consecutive odd (magoosh - very hard)
Replies: 3
Views: 1140

is M > N, we are given m and n are positive consecutive integers. st 1. m-1 and n+1 are consecutive, this can only be true if m is > than n we have to take the statements as true and need to prove it. Only way m-1 and n+1 are consecutive is example : m = 4 and n = 3, m-1 = 4-1 =3 n+1= 3+1 = 4 proved...

by gopinathhyd

Sat Mar 10, 2012 5:55 am
Forum: Data Sufficiency
Topic: consecutive
Replies: 2
Views: 952

Geometry DS

Find the area of Big circle, with radius R.

1. R = 2r

2. Area of rectangle is 75

by gopinathhyd

Tue Mar 06, 2012 1:10 pm
Forum: Data Sufficiency
Topic: Geometry DS
Replies: 1
Views: 830

Geometry problem

O is the center of circle. What is the area of the visible circle from the figure.

by gopinathhyd

Tue Mar 06, 2012 8:48 am
Forum: Problem Solving
Topic: Geometry problem
Replies: 1
Views: 907

rate work problem

Machines A, B, and C all three together complete work in 1 hr. Rate of B = 2A, and Rate of c = 3A, how much time will machine A will take to complete the work alone.

by gopinathhyd

Mon Mar 05, 2012 6:46 pm
Forum: Problem Solving
Topic: rate work problem
Replies: 2
Views: 984

I am sorry,

The correct question is

Is X = Y

1. (X^2) Y = 8
2. (Y^2) X = 8

by gopinathhyd

Mon Mar 05, 2012 7:23 am
Forum: Data Sufficiency
Topic: Exponents and equations
Replies: 5
Views: 1015
by gopinathhyd

Sun Mar 04, 2012 7:29 pm
Forum: Data Sufficiency
Topic: Exponents and equations
Replies: 5
Views: 1015

geometry-triangles

Is a Triangle ABC Isosceles Triangle.

1. BD=BC
2. Area of ABD and ACD are same.



(I saw this question in Magoosh GMAT, Ans is D, but my question is for an equilateral traingle also BD=BC. How can statement 1 is sufficient)

by gopinathhyd

Thu Mar 01, 2012 7:57 pm
Forum: Data Sufficiency
Topic: geometry-triangles
Replies: 2
Views: 1016

I go with B

Since none of the numbers are multiples of 27, n should be 27

by gopinathhyd

Tue Nov 01, 2011 1:03 pm
Forum: Problem Solving
Topic: Problem Solving - Factorization Question??
Replies: 18
Views: 9859