# If are coplanar, then λ is equal to :

1.  -1

2.  1/2

3.  -3/2

4.  2

4

-3/2

Explanation :
No Explanation available for this question

# If the volume of parallelopiped with conterminus edges then p is equal to :

1.  4

2.  -13

3.  13

4.  6

4

-13

Explanation :
No Explanation available for this question

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# If A and B are two independent events such that P (B) = 2/7, P (A U Bc) = 0.8, then P (A) is equal to :

1.  0.1

2.  0.2

3.  0.3

4.  0.4

4

0.3

Explanation :
No Explanation available for this question

# A number n is chosen at random from {] 2,3,4,..., 1000}. The probability that n is a number that leaves remainder 1 when divided by 7, is

1.  71 / 500

2.  143 / 1000

3.  72 / 500

4.  71 / 1000

4

71 / 500

Explanation :
No Explanation available for this question

# In the random experiment of tossing two unbiased dice let E be the event of getting the sum 8 and F be the event of getting even, numbers on both the dice. Then :      &n

1.  Both I and II are true

2.  Neither I nor II is true

3.  I is true, II is false

4.  I is false, II is true

4

Neither I nor II is true

Explanation :
No Explanation available for this question

# Seven balls are drawn simultaneously from a bag containing 5 white and 6 green balls. The probability of drawing 3 white and 4 green balls is :

1.

2.

3.

4.

4

Explanation :
No Explanation available for this question

# In a book of 500 pages, it is found that there are 250 typing errors. Assume that Poisson law holds for the number of errors per page. Then, the probability that a random sample of 2 pages will contain no error, is :

1.  e-0.3

2.  e-0.5

3.  e-1

4.  e-2

4

e<sup>-1</sup>

Explanation :
No Explanation available for this question

# The transformed equation of x2 + 6xy + 8y2 = 10 when the axes are rotated through an angle π/2 is :

1.  15x2 - 14xy + 3y2 = 20

2.  15x2 + 14xy- 3y2 =20

3.  15x2 + 14xy + 3y2 =20

4.  15x2 - 14xy - 3y2 = 20

4

15x<sup>2</sup> + 14xy + 3y<sup>2</sup> =20

Explanation :
No Explanation available for this question

1.  (1, 2)

2.  (2, 2)

3.  (3, 1)

4.  (1, 1)

4