CGL 2012 Tier 2 Preparations and Results

Staff Selection Commission (SSC) SSC - CGL
2475
@coolparul007 said:
gd mng..............plz answer my query...........mera admit card abhi tk mere ghar nahi pahuncha..............do i need to inform SSC office?.............or just take a print out of the online admit card
just take out a print out. no need to inform ssc. bus ek id proof le jana xam center and 2 phorogrPhs.
2476
@Brooklyn said: How to solve dis:
A wheel rotates 3.5 times in one second. What time in seconds does the wheel take to
rotate 55 radian of angle?
1. 1.5 b. 2.5 c 3.5 d 4.5
2.5
2477
@abhi_1234 : ans meko bhi pta hai yar.... :)
sahi hai temme the method
2478
@rahulshaitan said:
just take out a print out. no need to inform ssc. bus ek id proof le jana xam center and 2 phorogrPhs.
ok thanx...........
2479
@dhwanibhatt6 said: p^2=qy+rz , q^2=rz+px , r^2=px+qy then (x/p+x) + (y/q+y) + (z/r+z) is ?? Answer is 1 .Help me out as how to approach such problems ?
yar simple method i used:

let p=q=r=1

solve u get x=y=z=1/2

put values in eqn u get 1
2480
@sandy73 said: Good morning puys 1) when 25^25 is divisible by 26, the remainder is ___________
25^25/26 = (-1)^25/26=-1 or 25
2481
A and B are centres of the two circles whose radius are 5 cm and 2 cm respectively. The
direct common tangents to the circles meet AB extended at P. The P divides AB in the ratio?
a. externally in the ratio 5:2
b. internally in the ratio 2:5
c. internally in the ratio 5:2
d. externally in the ratio 7:2

Plz some one temme how d figure would be, if u can upload wld help !!
2482
@Brooklyn said:
@abhi_1234 : ans meko bhi pta hai yar....
sahi hai temme the method
1 radian = 180/pi therefore 55 radian =(55*180)/pi
1 rotation means 180*2 = 360 degrees covered
3.5*2*180 covered in 1 sec then calculate (55*180)/pi covered in how many second(take pi as 22/7)
2483
@Brooklyn
Answer is 25 only.
2484
@sandy73 yea i knw i said it comes out to be -1
which means 25 in +ve remainder terms so ans=25 :)
2485
@mickym : yar ye walla funda nhi smjh aaya can u elaborate?

http://en.wikipedia.org/wiki/Mass_point_geometry
2486
@gudda1122 :
A circular wire of radius 15 cm is cut and bent so as to lie along the circumference of a
loop of radius 120 cm. what is the measure of the angle subtended by it at the centre of the
loop?


yar how to do dis??
2487
@mickym said:
How to do??????
@JS-M said:
In a test consisting of 15 questions, 3 marks are awarded for a correct answer, 1 mark is deducted for an incorrect answer and no mark is awarded for an unattempted question. If a student attempts at least one question in the paper, what is the number of distinct scores that he can get?
(a) 57 (b) 58 (c) 59 (d) None of these
soln:

15*3 + 15*1 +1 -3c2

45+15 +1 -3 =58

T*n + T*m +1 -nc2, where T = Total number of questions, n= marks for correct question, m = marks for incorrect question.

If, the incorrect question marks is 1/3, or, 1/2, then we can say, that the marks for correc question is 3 or 2 and for the incorrect its -1

2488
@gudda1122 :
At the foot of a mountain the elevation of its summit is 45' after ascending one kilometer
towards the mountain upon an incline of 30' the elevation changes to 60' find the height of the
mountain.


How to do???
2489
@Brooklyn said: @gudda1122 :
A circular wire of radius 15 cm is cut and bent so as to lie along the circumference of a
loop of radius 120 cm. what is the measure of the angle subtended by it at the centre of the
loop?
yar how to do dis??
45degree
2490
@abhi_1234 : yar likha to how to do dis!! plz post method to!!
2491

How to do???


ABC is a triangle. The internal bisector of the angles angle A, angle B and angle C
intersect the circumcirlce at X,Y and Z respectively. If angle A=50 degree, angle CZY=30
degree then angle BYZ will be


ans is 35
2492
@Brooklyn said:
@abhi_1234 : yar likha to how to do dis!! plz post method to!!
circular wire 15 cm radius: total length = 2*pi*15
length of arc formed in bigger circle when smaller cir wire kept along circumference=2*pi*15
let angle subtended by this be #
(#/360)*2*pi*120 = 2*pi*15 now solve for angle #
2493
@abhi_1234 : thnx i didnt get d q :)
2494
A and B are centres of the two circles whose radius are 5 cm and 2 cm respectively. The
direct common tangents to the circles meet AB extended at P. The P divides AB in the ratio?
a. externally in the ratio 5:2
b. internally in the ratio 2:5
c. internally in the ratio 5:2
d. externally in the ratio 7:2

Plz some one temme how d figure would be, if u can upload wld help !!