Question

A bag contains (x) one rupee coins and (y) 50 paise coins.One coin is taken from the bag and put away. If a coin is now taken at random from the bag,what is the probability that it is a one rupee coin

Answer 1

Answer:

1+x/y-x

Step-by-step explanation:

After a coin is taken out:

Total=(x+y)-1

Probability= x/(x+y)-1

x/x+y-x/1

x/x+x/y-x

1+x/y+x

Hence, solved