February - 8th - GRE Test Question - Quants

February - 8th - GRE Test Question - Quants

1. Given two stes of numbers 3,3,3,7,3,3,3 and 5,3,2,6,1,3,5. Which of the following is equal for the two sets?
A. Mean
B. Median
C. Mode
D. None


2. xCol a: xy
Col b: yz



3.There are two printers 'p' and 'q', printer 'p' prints 3600 pages in 'x' seconds and printer 'q' prints 3600 pages in 'y' seconds. How
pages does it can print in 1sec if they work together?
Ans: 3600/x + 3600/y


4. Given an series of numbers....
Col A: The standand deviation of the series
Col B: The range of the series


5. Given 5 symblos... &, &, *, *, $. Find the number of different ways these five symbols can be arranged?


6. x^2 = 36; x(x+6)(x+8 ) = 0;
Col A: x
Col B: 0
Ans: B


7.Given |x| = |y| & xy<0
Col a : x+y
Col b : 0


8. A circle has two tangets at points A and B. They meet at point C outside circle...angle ACB is 50
col A : angle AOB
col B : 110
Ans: A

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callkbalaji

Posts: 1

6. x^2 = 36; x(x+6)(x+8 ) = 0;
Col A: x
Col B: 0

--- > Ans: B ...How sir?

from the given equations we find that x can be -6 , -8 or 0 . which means

x <= 0 . So Answer should be D right ?

Correct me if i m wrong

x^2 = 36; x(x+6)(x+8 ) = 0;
Col A: x
Col B: 0
Sol: Given two equations..... the value of x should be such that it should satisfy both equations....

From second Equation..... u got 3 values -6, -8, 0... for 'x'.... ok they are correct...
But -8, 0 cannot satisfy 1st equation...
so.. only x= -6 satisfies both the equations.... check it..
Hence x = -6
So.. Col B is greater..& B is the answer.