CGL 2012 Tier 2 Preparations and Results

Staff Selection Commission (SSC) SSC - CGL
3049
@truly.gone said:
bhai tum bhi online ho kya???? mere issmmein koyi online kiyu nehi dikh raha hain bhai????
achcha hun......headache haain yaar thoda......tum kaise ho bhai???
yaar lagi padi hai bas

tayari bilku bhi nahi hai \



chandigarh gaya tha kisi kaam se kal hi aaya hu


samajh nahi aaa raha kya karu

3050
@watsnew24 said:
are bhai ye nhi me brass aur bronze waala pooch rha tha....
Bhai

listen trick is jo Sn hai wo Bronze se hi aa rha hai
so let us say bronze total mass= 100
so Sn = 16
Now total me sirf 16 Sn hi aayega
but total mein 10% Sn

so total weight has to be 160
so only Cu & Zn wale ka weight = 60

Ab isse karo ho jayega
3051
@mickym said: Brass is an alloy of Cu and Zn. Bronze is of Cu(80%), Zn(4%), Sn(16%). A fussed mass of both has Cu(74%), Zn(16%), Sn(10%). What is the composition of Cu and Zn in Brass ?
38.4-cu
21.6 zn
ab dil mat todh dena galat bol kar
3052
@gudda1122 said:
38.4-cu
21.6 zn
ab dil mat todh dena galat bol kar
3054
@watsnew24 said:
are bhai ye nhi me brass aur bronze waala pooch rha tha....
@gudda1122 bhai ne bhi kar diya hai
3056
@micky0007 said:
yaar lagi padi hai bas
tayari bilku bhi nahi hai \
chandigarh gaya tha kisi kaam se kal hi aaya hu
samajh nahi aaa raha kya karu
@truly.gone said:
koyi nehi bhai....mera bhi same haal hain....AALLLLL ISSSS WELLLLLLLLLLLLLLLLLL
ditto.....
3057
@truly.gone said:
sab honhar, maths specialist pls try to solve it with explanations, i dont have answers with me
1. form it in ascending order: (root15- root13), (root73- root71), (root21 - root19), (root9-root7)
2. 1 + (2 +1) (2^2+1) (2^4+1)(2^8+1)(2^16+1)
3. find the number of digits in the expression 2^12 X 5^8
4. find the total no. of perfect square lying between 200 and 2000
Bhai pehle walla
rationalise it bro
oopar sabme 2 aayega neeche rt add hoge
so ans is
, (root73- root71), (root21 - root19), root15- root13), (root9-root7)
3058
@truly.gone said:
sab honhar, maths specialist pls try to solve it with explanations, i dont have answers with me
1. form it in ascending order: (root15- root13), (root73- root71), (root21 - root19), (root9-root7)
2. 1 + (2 +1) (2^2+1) (2^4+1)(2^8+1)(2^16+1)

1.)(root9-root7)(root15- root13)(root21 - root19)(root73- root71)

bhai direct question tha
real question would have been which one is bigger in this case

(rt19.9+rt20.1),(rt 19.8+rt20.2)

2.)iska answer 2^32???
3059
@truly.gone said:
sab honhar, maths specialist pls try to solve it with explanations, i dont have answers with me
1. form it in ascending order: (root15- root13), (root73- root71), (root21 - root19), (root9-root7)
2. 1 + (2 +1) (2^2+1) (2^4+1)(2^8+1)(2^16+1)
3. find the number of digits in the expression 2^12 X 5^8
4. find the total no. of perfect square lying between 200 and 2000
ye second walla to bahut bada aa rha hai
options kya hai
3063
@truly.gone said:
sab honhar, maths specialist pls try to solve it with explanations, i dont have answers with me

3. find the number of digits in the expression 2^12 X 5^8

13 digits aayengi

bhai 2^8*5^8=10^8=9 digits
then 5^4=3125
which means 13 digits
3064
@gudda1122 said:
1.)(root9-root7)(root15- root13)(root21 - root19)(root73- root71)
bhai direct question tha
real question would have been which one is bigger in this case
(rt19.9+rt20.1),(rt 19.8+rt20.2)
2.)iska answer 2^32???
2nd wala kaise kiya bro
3066

@watsnew24 said:
are bhai ye nhi me brass aur bronze waala pooch rha tha....

Let mixture z 800 g

copper = 592g; Zinc = 128 g ; Tin = 80 g
yr ab Bronze dekho...........
Tin 80 g; Copper = 400 g; Zinc = 20g
Now find difference

Copper = 592 - 400 = 192 g
Zinc = 128 - 20 = 108 g...............

3068
@mickym said:
ye second walla to bahut bada aa rha hai
options kya hai
bhai options ki jarurat kya h

(2-1) se multiple kar do woh ander jaha 2 ki power hai
uske baad bas woh 2^n-1 ki series ban jayegi

4.)44-15+1=30
15^2=225
44^2=1936
3069
@truly.gone said:
guru jiiii.................ye thoda aur elaborate karke batado........niche root sab ka add honge....to phir pata kaise chalega, ke ascending order mein kaise lana hain
yr jinta bada root.....uppar utna choota value ...........gud mrng jiiiiiiiiiiiiiiiiiiiii
3070
@truly.gone said:
guru jiiii.................ye thoda aur elaborate karke batado........niche root sab ka add honge....to phir pata kaise chalega, ke ascending order mein kaise lana hain
arre jitna bada number uska root bhi bada
jaise neeche aaya rt73+rt71 > rt21+rt19>rt15+rt13
3072
@gudda1122 said:
bhai options ki jarurat kya h
(2-1) se multiple kar do woh ander jaha 2 ki power hai
uske baad bas woh 2^n-1 ki series ban jayegi
4.)44-15+1=30
15^2=225
44^2=1936
thnx bro
3073
@JS-M said:
yr jinta bada root.....uppar utna choota value ...........gud mrng jiiiiiiiiiiiiiiiiiiiii
@mickym said:
arre jitna bada number uska root bhi bada
jaise neeche aaya rt73+rt71 > rt21+rt19>rt15+rt13
waise itna bhi karni ki jarurat nhi h

suppose
rt a+rt b and rt c+ rt d de rakha h
and we need to see which one is bigger

then
1.)jis number mein addition and multiplication both win karega woh number hamesha bada hoga
if a+b.c+d and a*b>c*d then
rt a+rt b wala 100% bada hoga
3074

when a heap of pebbles is arranged into groups of 32 each 10 pebbles are left over when they are arranged in heaps of 40 each 18 peebles are left over and when in groups of 72 each 50 are left over . the least onumber of peebles are

3075
@micky0007 said: when a heap of pebbles is arranged into groups of 32 each 10 pebbles are left over when they are arranged in heaps of 40 each 18 peebles are left over and when in groups of 72 each 50 are left over . the least onumber of peebles are
dont know answer
3076
@micky0007 said: when a heap of pebbles is arranged into groups of 32 each 10 pebbles are left over when they are arranged in heaps of 40 each 18 peebles are left over and when in groups of 72 each 50 are left over . the least onumber of peebles are
and plz elaborate