Q. 3 B4.8( 8 Votes )

# A kiddy bank contains hundred 50p coins. Fifty DI coins, twenty D2 coins and ten D5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down. What is the probability that the coin.

will not be a D5 coin?

Answer :

Probability the coin will be a D5 coin –

⇒ P(Coin will be a D5 coin) =

⇒ P(Coin will be a D5 coin) =

⇒ P(Coin will be a D5 coin) =

∴ P(coin will not be a D5 coin) = 1 – P(coin will be a D5 coin)

⇒ P(coin will not be a D5 coin) =

⇒ P(Coin will not be a D5 coin) =

⇒ P(Coin will not be a D5 coin) =

∴ Probability that the coin will not be D5 coin is .

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

PREVIOUSA kiddy bank contains hundred 50p coins. Fifty DI coins, twenty D2 coins and ten D5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down. What is the probability that the coin.will be a 50p coin?NEXTGopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish (See figure). What is the probability that the fish taken out is a male fish?

Related Videos

Quiz | Imp. Qs. of Probability37 mins

Let's understand Probability40 mins

When Chance is called Probability48 mins

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Expertsview all courses

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation

RELATED QUESTIONS :

If P (E)=0.05. What is the probability of ‘notE’?

AP- MathematicsRahim removes all the hearts from the cards. What is the probability of

Getting an ace from the remaining pack.

AP- MathematicsRahim removes all the hearts from the cards. What is the probability of

Getting a diamond.

AP- Mathematics