6th - December - GRE - Quant

6th - December - GRE - Quant
« on: December 07, 2007, 12:28:59 AM »

6th - December - GRE - Quant

1. Given there are 50 numbers, if the average of the first 25 numbers is 16 ,next 10 numbers is 15 and the last set is 20. What is the average of the entire set ?
Ans: 17

2. /X-3/<5
Col A: X
Col B: -8
Ans: A

3. Given Set={1,3,4,5,7,8,9}
Col a: number of ways in which 5 digit number can be formed
Col b: 7*6*5*4*3
Ans: A

4. A number divided by 5 leaves a reminder 3 and when divided by 7 leaves a reminder 4
a)8
b)11
c)18
d)46
e)52
Ans: C

5. If x<0, then the median for x, -1, 1, x^2, x^3 is
Ans: -1

6. 0 Col a: x intercept
Col b: y intercept
Ans: A

7. Col a: 1/2 - 1/4 + 1/8 - 1/16
Col b:2(1/2 + 1/4 - 1/8 +1/16 - 1/32)
Ans: B

8. A line passing through (5,5) touches x-axis and y-axis at (x,0) and (0,y) respectively.
Col a:x
Col b:y
Ans: D

9. Of the following numbers which of them has highest Standard Deviation?
1. 25,26,27,28,29,30
2. 28,28,28,28,28,28
3. 23,24,25,26,26,26

10. Col A : sqrt(26)
Col B : sqrt(24) + 1
Ans: B