Home
Class 12
MATHS
Two distinct numbers x and y are choosen...

Two distinct numbers x and y are choosen from 1, 2, 3, 4, 5. The probability that the arithmetic mean of x and y is an integer is
a)0 b)1/5 c)3/5 d)2/5

A

0

B

`1//5`

C

`3//5`

D

`2//5`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

The arithmetic mean of two numbers x and y is 3 and geometric mean is 1. Then x^(2) + y^(2) is equal to

IF a,b,c are in GP and x,y are arithmetic mean of a,b and b,c respectively. Then 1/x+1/y is equal to

The vertices of a triangle are A (3, 7), B(3, 4) and C(5, 4). The equation of the bisector of the angle ABC is a) y = x+1 b) y = x-1 c) y= 3x - 5 d) y = x

The eccentricity of the hyperbola x ^(2) - y ^(2) = 4 is :a) sqrt3 b) 2 c) 1.5 d) sqrt2

The number of 3 x 3 matrices with entries - 1 and 1 is a) 2^(-4) b) 2^(5) c) 2^(6) d) 2^(8)

If Q is the image of the point P (2,3,4) under the reflection in the plane x-2y+5z=6 then the equation of the line PQ is a) (x-2)/(-1)= (y-3)/2= (z-4)/5 b) (x-2)/(1)= (y-3)/(-2)= (z-4)/5 c) (x-2)/(-1)= (y-3)/(-2)= (z-4)/5 d) (x-2)/(1)= (y-3)/(2)= (z-4)/5

If the eccentricity of the hyperbola (x ^(2))/(a ^(2)) -(y ^(2))/(b ^(2)) =1 is (5)/(4) and 2x + 3y - 6 =0 is a focal chord of the hyperbola, then the length of transvers axis is equal to a) 12//5 b) 6 c) 24//7 d) 24//5

Area lying in the first quadrant and bounded by the curve y=x^(3) and the line y=4x is a)2 b)3 c)4 d)5