Question

A bag contains 4 black balls, 5 red balls and one blue ball. what is the probability of getting a black ball?

Answer 1

Answer:

4/10 or 2/5 okay this will may help you

Answer 2

Answer:

A BAG CONTAINS 4 BLACK BALLS , 5 RED BALLS AND ONE BLUE BALL.

therefore,

S ={B1 ,B2,B3,B4,R1,R2,R3,R4,R5,BL1}

n(S) = 10

NOW ,

LET " A" BE THE EVENT OF GETTING A BLACK BALL.

A = { B1,B2,B3,B4}

n(A) = 4

Using the formula of probability,

$\frac{n(a)}{n(s)} = \frac{4}{10} = \frac{2}{5}$

THE PROBABILITY OF GETTING BLACK BALLS IS

$\frac{2}{5 }$

HOPE IT HELPS !!