Mathematics
A bag contains 10 red balls, 16 white balls and 8 green balls. A ball is drawn out of the bag at random. What is the probability that the ball drawn will be :
(i) not red ?
(ii) neither red nor green ?
(iii) white or green ?
Related Questions
Two dice are thrown at the same time. Find the probability that the sum of the two numbers appearing on the top of the dice is :
(i) 8
(ii) 13
(iii) less than or equal to 12
The probability that two boys do not have the same birthday is 0.897. What is the probability that the two boys have the same birthday ?
A bag contains twenty ₹ 5 coins, fifty ₹ 2 coins and thirty ₹ 1 coins. If it is equally likely that one of the coins will fall down when the bag is turned upside down, what is the probability that the coin :
(i) will be a ₹ 1 coin ?
(ii) will not be a ₹ 2 coin ?
(iii) will neither be a ₹ 5 coin nor be a ₹ 1 coin ?
A game consists of spinning arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12; as shown below.
If the outcomes are equally likely, find the probability that the pointer will point at:
(i) 6
(ii) an even number
(iii) a prime number
(iv) a number greater than 8
(v) a number less than or equal to 9
(vi) a number between 3 and 11.