Dr Raju's Institute of Graduate Studies Abroad

pravita · Joined: 23 Jul 2010 Posts: 32

@ varun are asking 7th or 6th..

pravita · Joined: 23 Jul 2010 Posts: 32

@ varun...6th question is based on the principle of percentage points....
all u need to do is to find out the % grwth between yrs 1970-1980 and 1970 to 1985..then apply formula of percentage points to that which gives u d answer i e 4 Smile

therani.arch · Joined: 19 Jul 2010 Posts: 65

Hello,

pravita:

for the 8th one, yes we should take 25, 23...
that makes it 25+(1000-1)(-2)

for the 5th one:slope = (y2-y1)/(x2-x1)
Now the max value of y2-y1=5-0=5
and least value for x2-x1-2-0=2

that makes it 2.5
So the slope of pq would always be less than 2.5

varun kumar:

for the 7th one, Q eats 1/3 of the remaining part i.e left by P =3/4 of whole

So 1/3*3/4=1/4

So total P+Q=1/4+1/4=1/2

Best of luck u guys

hamid · Joined: 23 Jul 2010 Posts: 6

Guyz, I think the last line of question 3"If the combined mean of both the sets ‘R’ and ‘T’ are ‘a’ and ‘b’, then......" is problematic.For a combined series how there can be two means?One of them should be median.
Considering this,can anyone explain how you get the answer as B?
Thanks
[/b]

pravita · Joined: 23 Jul 2010 Posts: 32

hello hamid......
can u pls explain me hw to do this problem...question 3... Rolling Eyes

hamid · Joined: 23 Jul 2010 Posts: 6

hi pravita,
To my view,the answer should be D.
Becasue,two set of numbers are given.One or even two of the sets can be composed of all negative numbers or one set negative,one positive numbers.So, for the combined set to my view it is not possible to have a guess whether median or average is greater with the amount of data given.
Please correct me if I'm wrong.

nehareddy4u · Joined: 23 Jul 2010 Posts: 66

i don't think 5th question has a answer.. it would be D..

as i can take any point..
for example.. p(4.1,4.5) and q(1.2,1.5).. so u will get one slope.. similarly i will take other two points p(x,y) q(w,r).. which will give another slope.. so i think it must be D.. what do u say guys.. ??

Explain..

preeths · Joined: 20 Jul 2010 Posts: 6

how to slove 5th type of questions?
pls do reply

preeths · Joined: 20 Jul 2010 Posts: 6

how did u get 6th one as 4.17? pls do reply... a bit urgent..

preeths · Joined: 20 Jul 2010 Posts: 6

3rd one could be D na???
pls do reply...
m exam's tomorrrow...

hamid · Joined: 23 Jul 2010 Posts: 6

nandana · Joined: 18 Jul 2010 Posts: 6

1.b
exp:colA:1/2(area of ABC)
ABC=1/2(6*12)=36
1/2(36)=18
colB:area of shaded region A=1/2pi r^2-(area of ABC)
=1/2pi(6)^2
=18*3.14-36
=56.52-36
=20.52
2.d
3.b
4.10^6
5.?????
6.1970 to 85
so 15%
epln:1970-1985=15
7.i got 1/2
expl:for xample 100
1//4of 100 is=25
1/3 part of remaining=25
consumed fraction by both is 50 is half
8.a
if i am wrong correct me

hamid · Joined: 23 Jul 2010 Posts: 6

@nandana: Would u please explain how you solved and get the ans. of prob 3 as b?

To my view, the answers are :
1.b
2.b
3.d
4.10^6
5.D
6.25/6 %
7.1/2
8.A

Please correct me if I'm wrong