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Simple hai yar :

+ (-3) (-9) 0

---|------------

4 | 1 -5 4

10 | 7 +1 10

5 2 -4 +5

so answer is 5, 3rd option.

Thnks Jha.. hw abt the second... one any ideas?

attached are a couple of questions from gmatprep.. somehow im not able to get the solution for both of them .. Please guide me

Attached are couple of questions from GMAT Prep. Y is the 1st answer incorrect and please throw some light on the approach of both the questions.

Question (2)

As per the question when the tree is planted it is 4ft tall. After which it grows

at a uniform rate.

0th year --> 4 ft

1st year --> 4+x

2nd year --> 4+2x

3rd year --> 4+3x

4th year --> 4+4x

5th year --> 4+5x

6th year --> 4+6x

It is given that at the end of the 6th year, the tree was 1/5th taller

than it was at the end of the 4th year.

--> 4+6x = 1/5 (4+4x) + (4+4x)

Solve to get x = 2/3

ANSWER IS 2/3.

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Question (1):-

Statement 1 ->16 students at the school study both French and Japanese.

This only tells that 16= 4/100 (Total Students). We will therefore we be able to find the Total Number of Students as 400. However, this is NOT SUFFICIENT as it does not provide us any information about how many french students are there to compare with the no. of japanese students.

Statement 2 -> 10 percent of the students at the school who study japanese also study french. This statement is SUFFICIENT. Reasoning given below:-

10/100 (Japanese Students) = 4/100 (French Students)

--> J = 4F

This information is sufficient to find out which number of students is higher.

(Note the 4/100 (french students) is already given in the question).

ANSWER IS (B) - STATEMENT 2 ALONE IS SUFFICIENT.

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Thanks a lot for your explanation

For the 1st question i thought 4+6x = 1/5 (4+4x) equation applies... just got corrected

Although it claims to delve into political issues, television can be superficial such as when each of the three major networks broadcast exactly the same statement

from a political candidate.

(A) superficial such as when each of the three major networks

(B) superficial, as can sometimes occur if all of the three major networks

(C) superficial if the three major networks all

(D) superficial whenever each of the three major networks

(E) superficial, as when the three major networks each

Dude I again go with A . Let me know the correct answers

I'll go with A

hi guys, solve this.

I have done it right, but want to discuss.

Although he is as gifted as, if not more gifted than, many of his colleagues, he is extremely modest and his poetry is unpublished.

(A) Although he is as gifted as, if not more gifted than, many of his colleagues, he is extremely modest and his poetry is unpublished.

(B) Although he is as gifted, if not more gifted, than many of his colleagues, he is extremely modest and with his poetry remaining unpublished.

(C) Although he is as gifted as, if not more gifted than, many of his colleagues, he is extremely modest and will not publish his poetry.

(D) Despite his being gifted, if not more gifted than his colleagues, he is extremely modest and will not publish his poetry.

(E) Being a gifted as, or more gifted than, many of his colleagues, he is extremely modest and his poetry is unpublished.

Attached are a couple of GMAT Prep DS questions which I got wrong..

Can somebody please explain these.

Thanks,

Aakash

In the XY plane, line K passes through the point ( 1,1) and line m passes through (1,-1)

Are lines k and m perpendiculafr to each other?

1. lines k and m intersect at the point (1,-1)

2. line k intersect the x axis at point (1,0).

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