(I) will be a 50 p coin?
(ii) won’t be a ₹5 coin?
Solution:
Complete no. of coins = 100+50+20+10 = 180
P(E) = (Number of ideal results/Total number of results)
(I) Total number of 50 p coin = 100
P (50 p coin) = 100/180 = 5/9 = 0.55
(ii) Total number of ₹5 coin = 10
P (₹5 coin) = 10/180 = 1/18 = 0.055
∴ P (not ₹5 coin) = 1-P (₹5 coin) = 1-0.055 = 0.945