self Maths Puzzle

One rupee coin was tossed thrice. whats the probability that first will be tails second and third will be heads?

Read Solution (Total 2)

n(S) = 8
n(A) = 1
P(S) = 1/8
11 years agoHelpfull: Yes(1) No(0)

(1/2)*(1/2)*(1/2)= 1/8
12 years agoHelpfull: Yes(0) No(0)

self Other Question

A bag consists of three blue balls and three green balls. Two balls are taken at random. whats the probability the two of the balls taken are same colour? A B C made investment in a bank in the ratio of 1:3:5.After a year A invests double the amount of previously invested, B and C invested half of the amount invested before. Then what is the ratio now.