Dr Raju's Institute of Graduate Studies Abroad

[GREquant800]

Quant:

1. Given that in a set of 35 numbers, the average of the first 10 numbers is given as 12 and of next 15 numbers is given as 20. Find the average of the entire set?
(Similar to this)

2. Given the cost of an Television set in the year 2000 as $312 and said to be increased by 60% when compared to 1990, find the cost of the set in 1990?
(Similar to this)


3. If the standard deviation of a set of numbers a, b, c is ‘S’, then
Col A: Standard deviation of set of numbers a - 5, b - 5 & c – 5
Col B: S – 5
(Similar to this)


4. Given 0 < x < 5 < y < 10
Col A: x + y
Col B: y/x


5. Col A: The probability of a number selected from 1 to 19 is an odd number
Col B: 1/2
(Similar to this)


6. The function ∆(m) is defined as the product of m+4 , m+5, m+6 for all positive integers values of m. If n is a positive integer, then ∆(n) must be divisible by which of the following numbers?
A. 4
B. 5
C. 6
D. 7
E. 11
(Similar to this)


7. For any positive integer n, pi(n) represents the number of factors of n, inclusive of 1 and itself. If a and b are prime numbers, then
Col A: pi(a) + pi(b)
Col B: pi(ab)
(Similar to this)

[maheshreddy]

1) data insufficient
2) 195
3)a
4)D
5)a
6)c
7)c

plz correct my ans if any wrongs are...
_________________
MAHESH REDDY MALLELA

[ramyavasa]

where do i find ans for these questions?

[chowdarymygang]

@ mahesh::

HEy i too got the same answers.. all the best dude. when is u r exam??

[rajat.tiet]

Hey,

My answer's are as follows:

1. Data not complete. Although if n=25, then the answer is 16.8
2. 195
3. Not getting the method. Please help!!!
4. D
5. A
6. C
7. C

Please reply soon...

[ramyavasa]

can any 1 hlp me with the 6th qustion.. plzzz

[maheshreddy]

exam is on 15th dudes.wish me all the best...
_________________
MAHESH REDDY MALLELA

[rajat.tiet]

@Mahesh

All the best buddy....!!! Do share your experience after the exam.....

[rajat.tiet]

@Mahesh

All the best buddy....!!! Do share your experience after the exam.....

[murali53]

can any one pls explain the 2nd one

[murali53]

if we take n as 6 then it is divisible my 7
if we take n as a 10 then it is divisible by 11
so every product is divisicle by (n+1)


can my assumption is correct????????????/
_________________
krishna

[ashok72]

answer to 4th one is b i guess

[ashok72]

sorry ur right

[devineni]

can u explain 6th question
_________________
Devineni

[pravita]

Given 0 < x < 5 < y < 10
Col A: x + y
Col B: y/x
can u pls explain hw did u guyz get D