CGL 2012 Tier 2 Preparations and Results

Staff Selection Commission (SSC) SSC - CGL
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@jindalsaw said:

Q. If s1 and s2 be the surface area of a sphere and the curved surface area of the circumscribed cylinder respectively, then s1 is equal to

a)3/4 s2

b)1/2 s2

c)2/3 s2

d)s2

d)s2
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@jindalsaw kch aur explain kiya hai..Mere figure k according to dono ka r equal aana chaiye aur cylinder ka h=2r..
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@jindalsaw lets hope ki solution is wrong kyu ki yha sabka s1=s2 hi aa raha hai.
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@jindalsaw d )
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Guys! wen i be able to get my Tier 2 admin card? any idea?

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@jindalsaw where i can download my admit card from??

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M frm Bangalore!

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@jindalsaw Thanks!
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Hi puys,

Question: if p:q=r:s=t:u=2:3
then (mp+nr+ot):(mq+ns+ou) is equal to ?
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@VK_Shukla
@VK_Shukla said: Hi puys,
Question: if p:q=r:s=t:u=2:3
then (mp+nr+ot) : (mq+ns+ou) is equal to ?
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@VK_Shukla 2:3??
@VK_Shukla said: Hi puys,
Question: if p:q=r:s=t:u=2:3
then (mp+nr+ot)mq+ns+ou) is equal to ?
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@VK_Shukla

2:3
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@nellorereddy @anurag1701 :
@VK_Shukla
2:3
Can you elaborate a little please....
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@VK_Shukla

a/b=c/d=e/f =a+b+c/d+e+f
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@nellorereddy

@VK_Shukla

SRY a/d=b/e=c/f=a+b+c/d+e+f
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@VK_Shukla said:
Can you elaborate a little please....
@VK_Shukla p/q=2/3 => p=(2/3)q
r/s=2/3 => r=(2/3)s
t/u=2/3 => t=(2/3)u ..substitute this value of p,r and t in (mp+nr+ot):(mq+ns+ou)
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@anurag1701 said:
@VK_Shukla p/q=2/3 => p=(2/3)q r/s=2/3 => r=(2/3)s t/u=2/3 => t=(2/3)u ..substitute this value of p,r and t in (mp+nr+ot)mq+ns+ou)
Thanks anurag.... Actually this question was in Kiran model papers and I could not solve...Now I got it.
@nellorereddy : a/b=c/d=e/f=a+c+e/b+d+f is given in Kiran solution also but I couldn't prove it
:(
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@VK_Shukla What is this kiran model paper..hearing alot about it lately? Is it something in pdf format?
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@anurag1701 said:
@VK_Shukla What is this kiran model paper..hearing alot about it lately? Is it something in pdf format?
No, actually this is a book published by Kiran Publication ltd(www.kiranprakashan.com).
It has about twenty model papers....
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@VK_Shukla
@VK_Shukla said:
Thanks anurag.... Actually this question was in Kiran model papers and I could not solve...Now I got it.
@nellorereddy : a/b=c/d=e/f=a+c+e/b+d+f is given in Kiran solution also but I couldn't prove it
take m=n=o and use that