CGL 2012 Tier 2 Preparations and Results

alkoszzz · September 13, 2012, 2:01pm

@JS-M lolz....options de ek baar....agar nahi hai to mat laga dimaag...koi maharati bataye please....

cbiofficer · September 13, 2012, 2:02pm

@watsnew24 said:
achha bhai any notification for no. of people who gave the exam & no. of selections.....

nearly 2lakh appeared

watsnew24 · September 13, 2012, 2:02pm

@cbiofficer said:
nearly 2lakh appeared

selected...???

gudda1122 · September 13, 2012, 2:04pm

@JS-M said:
yr agr 2^1001 - 1 ........to kaise karege

bhai

(a^n+b^n) is always divisble by (a+b) when n is odd

(a^n-b^n) is always divisible by (a+b) and (a-b) when n is even

yahan aapke question mein

2^1001 - 1^1001

cbiofficer · September 13, 2012, 2:04pm

sory bro 2lakh applied nd 112880 appeard.

js-m · September 13, 2012, 2:05pm

@alkoszzz said:
@JS-M lolz....options de ek baar....agar nahi hai to mat laga dimaag...koi maharati bataye please....

optn to same rakhe ko bola hai na......

watsnew24 · September 13, 2012, 2:07pm

@cbiofficer said: sory bro 2lakh applied nd 112880 appeard.

total selected...???

gudda1122 · September 13, 2012, 2:08pm

@JS-M said: 2^16 -1 is divisible by?
a)11 b)13 c)17 d)19

bhai yeh

5...17....33....257 in sab se divisble hoga

gudda1122 · September 13, 2012, 2:09pm

@JS-M said:
yr agr 2^1001 - 1 ........to kaise karege

bhai yeh sirf 3 se divisble aayega

alkoszzz · September 13, 2012, 2:09pm

@alkoszzz said:
@JS-M dekh it can be 256^143-1^143so answer will be 255... a^n-b^n is always divisble by a-b

i did a blunder sorry......128^143-1^143 so answer will be 127....srry guys.....

cbiofficer · September 13, 2012, 2:09pm

@watsnew24 said:
selected...???

yups

watsnew24 · September 13, 2012, 2:10pm

@cbiofficer said:
yups

gr8 & total selected....???

js-m · September 13, 2012, 2:10pm

@gudda1122 said:
bhai
(a^n+b^n) is always divisble by (a+b) when n is odd
(a^n-b^n) is always divisible by (a+b) and (a-b) when n is even

yahan aapke question mein
2^1001 - 1^1001

yr ye 2nd wala point sure hai...both (a+b) and (a-b)..??

watsnew24 · September 13, 2012, 2:11pm

@JS-M said:
yr ye 2nd wala point sure hai...both (a+b) and (a-b)..??

ha bhai obviously agar power even hoga to it can break into a+b & a-b

alkoszzz · September 13, 2012, 2:12pm

@JS-M said:
yr ye 2nd wala point sure hai...both (a+b) and (a-b)..??

jsm a^n-b^n is always divisible by a-b.....and its only divisible by a+b when n is even....

gudda1122 · September 13, 2012, 2:16pm

@JS-M said:
yr ye 2nd wala point sure hai...both (a+b) and (a-b)..??

100% bhai

jaise suppose kare we have

(a^6-b^6)=(a^3-b^3)(a^3+b^3)

so now (a^3-b^3)=(a-b)*(something) so this means it is divisible by (a-b)

now (a^3+b^3)=(a+b)*(Something)

js-m · September 13, 2012, 2:17pm

Fresh fruit contains 68% water n dry fruit 20% water. How much dry fruit can be obtained frm 100kgs of fresh fruit?

gudda1122 · September 13, 2012, 2:18pm

@JS-M said: Fresh fruit contains 68% water n dry fruit 20% water. How much dry fruit can be obtained frm 100kgs of fresh fruit?

40 kg answer hai

js-m · September 13, 2012, 2:20pm

@gudda1122 said:
40 kg answer hai

approach plz??

brooklyn · September 13, 2012, 2:20pm

@gudda1122 said: A semi circular sheeet of metal of diamtr 28cm is bent into an open conical cup.The depth of d cup is approx-11 12 13

how to do dis ????