Question

A piggy bank contains hundred 50paise coins fifty ₹1 coin twenty ₹2 coin and ten ₹5 coin.if it is equally likely that one of the coin (i)will be 50paise coin (ii) will not be a₹5 coin

Answer 1

Step-by-step explanation:

Given: Number of 50 paise coins =100

Number of 1 rupee coins = 50

Number of 2 rupee coins = 20

Number of 5 rupees coins = 10

So, total number of coins =100+50+20+10 = 180

(2) Probability of not 5 rupee coin = 1 - Probability of 5 rupee coin =1- Number of 5 rupee coins/total number of coins = 1-10/180=1-1/18 = 17/18........