Question

In a bag there are 21 balls some red and some green. The probability of drawing a red ball is known to be 1/3.
a) How many red balls are there in the bag?
b) If one red ball is taken out, what would be the probability of drawing a red ball from the remaining balls?​

Answer 1

Answer:

1. 1/3 , 2/3 ,3/3
2. 1/2 , 2/2

PLZZZZZZZZZZ MARK AS BRAINALIEST

Answer 2

a)there are 9 red balls ...

coz...1/3×21 gives 7

b)8/21