SOLUTION: A bag contains 80 balls of which 20 are red, 25 are blue and 35 are white. A ball is picked at random ,what is the probability that the ball picked is (i) Red ball (ii) Red or Bl

Algebra.Com
Question 1117440: A bag contains 80 balls of which 20 are red, 25 are blue and 35 are white. A ball is picked at random ,what is the probability that the ball picked is
(i) Red ball
(ii) Red or Blue ball

Answer by ikleyn(52898)   (Show Source): You can put this solution on YOUR website!
.
(i)  20 favorable outcomes of 80.


     The probability under the question is   =  = 0.25 = 25%.



(ii)  20+25 = 45  favorable outcomes of 80.


     The probability under the question is   =  = .0.5625 = 56.25%.



RELATED QUESTIONS

A bag contains 24 red balls and some blue balls . When a blue ball is picked at random... (answered by stanbon)
a bag contains 10 balls of which 6 are red and the rest are white and blue and of equal... (answered by Boreal)
A bag contains 8 balls of which 5 are red and 3 are white. If a man selects 2 balls at... (answered by ikleyn)
a bag contains a total of 20 balls. 6 are white, 3 are red and the rest are blue. if one... (answered by stanbon)
You are given two urns, each containing a collection of coloured balls. Urn 1 contains... (answered by ikleyn)
A box contains two blue, three red and five white balls of equal sizes. Two balls are... (answered by Boreal)
A bag contains 3 red balls, 2 white balls and 1 blue ball. Two balls are taken from the... (answered by robertb)
A bag contains 10 red, 8 green and 7 blue balls, If two balls are picked at random one... (answered by ikleyn,greenestamps)
A bag contains 20 marbles, 3 are colored red, 6 are colored green, 4are colored blue, 2... (answered by Fombitz)