If a tangent to the circle x2+y2+4x-4y+4=0 makes equal intercepts on the coordinate axes then the equation of that tangent is

1.  x+y=2

2.  x+y=√2

3.  x+y=2√2

4.  x+y=1

4

x+y=2√2

Explanation :
No Explanation available for this question

The probability that a number selected at random from the set of members {1,2,3,4,…100} is a cube is

1.  4/25

2.  3/25

3.  2/25

4.  1/25

4

1/25

Explanation :
No Explanation available for this question

The locus of the point of intersection of perpendicular tangents to the circle x2+y2=16 is a circle whose diameter is

1.  4√2

2.  8√2

3.  2√2

4.  8

4

8√2

Explanation :
No Explanation available for this question

If S is a sample space (A)=1/3P(B) and S=AB where A and B are two mutually exclusive events, then P(A)=

1.  3/8

2.  3/4

3.  1/2

4.  1/4

4

1/4

Explanation :
No Explanation available for this question

The probability of getting a number between 1 and 100,which is divisible by one and itself only is

1.  15/98

2.  25/98

3.  1/3

4.  1/4

4

25/98

Explanation :
No Explanation available for this question

If the tangents to the circle x2+y2=a2 at (p,q) and (r,s) are parallel then

1.  pr-qs=0

2.  p2+q2=r2+s2

3.  ps-qr=0

4.  p+s=q+r

4

ps-qr=0

Explanation :
No Explanation available for this question

5 different Engineering,4 different Mathematics and 2 different Chemistry books are placed in a shelf at random. The probability that the books of each kind are all together is

1.  3!5!4!/11!

2.  ∠5∠6/∠11

3.  ∠3∠5∠4∠2/∠11

4.  ∠5∠4∠2/∠11

4

∠3∠5∠4∠2/∠11

Explanation :
No Explanation available for this question

The line y=x is a tangent at (0,0) to a circle of radius unity.The centre of the circle is

1.  (1,0)

2.  (1/√2,1/√2)

3.  (-1/√2,1/√2)

4.  (-1/√2,-1/√2)

4

(-1/√2,1/√2)

Explanation :
No Explanation available for this question

One of the two events A and B must occur. If P(A)=2/3P(B),the odds in favour of B are

1.  3:2

2.  2:3

3.  2:1

4.  1:3

4

3:2

Explanation :
No Explanation available for this question

1.  2

2.  4

3.  8

4.  16

4