Question

Q.32 A piggy bank contains hundred 50p coins, fifty 1 coins, twenty T2 coins and ten 5 coins. If
It is equally likely that one of the colns will fall out when the bank is turned upside down, what is
the probability that the coin (1) will be a 50p coin? (ii) will not be a 5 coin.
OR​

Answer 1

: Required Answer

➝ Total no. of coins = 100+50+20+10 = 180

➝ P(E) = (Number of favourable outcomes/ Total number of outcomes)

(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