A. 52/52C3
B. 64/52C3
C. 78/52C3
D. 84/52C3
If the probability that A and B will die with in a year are p and q respectively, then the probability that only one of them will be alive at the end of the year is
The eccentricity o the ellipse 9x2+16y2=576 is
A bag contain 6 white and 4 black balls. A fair die is rolled and a number of balls equal to that appearing on the die is chosen from the bag at random. The probability that all the balls selected are white is
The vertex and focus of a parabola are (2, 1), (1, -1). Then the equation of the tangent at the vertex is
If one ticket is randomly selected from, tickets numbered from 1to 30 then the probabilitythat the numbered on the tickets i a multiple of 5 or 7 is
If the point of intersection of kx+4y+2=0, x-3y+5=0 lies on 2x+7y-3=0, then k=
A person has 3 shares in a lottery containing 2 prizes and 5 blanks. The chance of getting prize is
If P (A) =0.4, P (B) =0.5, P(C) =0.6, P (A∩B) =0.2, P (B∩C) =0.3, P (C∩A) =0.25, P (A∩B∩C) =0.1then P (AUBUC) =
The radical axis of the circles x2+y2-6x-4y-44=0 and x2+y2-14x-5y-24=0 is
Bag A contains4 white, 3black balls.Bag B contains 3 white and 5 black balls.One ball is drawn from each bag .The probability that both are black is