Question

This the question....
Answer it...​

Answer 1

Answer:

(i) 5/9 (ii) 17/18

Step-by-step explanation:

Total number of coins = 100+50+20+10 = 180

(i) P(50p) = 100/180 = 5/9

(ii) P(not Rs. 5) = 1 - P(Rs. 5)

= 1 - 10/180

= 1 - 1/18

= 17/18

Answer 2

Step-by-step explanation:

Given:-

A piggy bank contains hundred 50p coins,

fifty 1 rupee coins ,twenty 2 rupee coins and ten 5 rupee coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down.

To find:-

What is the probability that the coin

I)will be a 50 p coin?

ii)will not be a 5 rupee coin?

Solution:-

Total number of 50p coins=100

Total number of 1 rupee coins=50

Total number of 2 rupee coins=20

Total number of 5 rupee coins=10

Total number of coins=100+50+20+10=180

we know that

Probability of an event E=

number of favourable outcomes/Total number of all possible outcomes

i) Probability of getting a 50p coin:-

P(50p)=Number of favourable outcomes to 50p/

Total number of possible outcomes

=>P(50p)=100/180

=>P(50p)=5/9

ii) Probability of getting a 5rupee coin:-

P(5)=Number of favourable outcomes to 5 rupee coin/Total number of possible outcomes

=>P(5)=10/180

=>P(5)=1/18

iii)Probability of getting not a 5rupee coin:-

We know that P(E)+P(not E)=1

=>P(not E)=1-P(E)

P(not 5)=1-P(5)

=>P(not 5)=1-(1/18)

=>P(not 5)=(18-1)/18

P(not 5)=17/18

Answer:-

I)5/9

2)17/18