Question

three friends anil,Sunil and kamal write numbers 1 to 19 on different pieces of paper ,mix them thoroughly and placed them in a bowl.kamal takes out two chits at once.

what is the probability that sum of the two numbers taken out by kamal is 12​

Answer 1

Answer:

11/361 Is the probability

Answer 2

Let us look at the answer:

Step-by-step explanation:

The total number of chits are 19. that is total outcomes = 19

The sum of numbers to be 12 the outcomes can be : (1,11) (2,10) (3,9) (4,8) (5,7) (7,5) (8,4) (9,3) (11,1) ( 10, 2)

So, on first chit we can get 1, 2 ,3,4,5, 7, 8, 9, 11  P(E₁)= 10/19

So, on second chit as well 11, 10,9, 8, 7, 5 , 4,3, 2, 1 P(E₂) = 9/18

therefore the probability is = 5/19