A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.

Playing cards
(a) From a pack of cards the following cards are kept face down: Suhail wins if he picks up a face card. Find the probability of Suhail winning?
Playing cards (a) From a pack of cards the following cards are kept face down: Suhail wins if he picks up a face card. Find the probability of Suhail winning, (b) Now the foll
(b) Now the following cards are added to the above cards:
What is the probability of Suhail winning now? Reshma wins if she picks up a 4. What is the probability of Reshma winning? [Queen, King and Jack cards are called face cards.]
Playing cards (a) From a pack of cards the following cards are kept face down: Suhail wins if he picks up a face card. Find the probability of Suhail winning, (b) Now the foll

Solution:

(a) There are 7 cards in total I which 1 is face card and 6 are number cards

For suhail to win, he must pick a face card

Probability of getting face card is 1/7

Hence, probability of suhail to win is 1/7

(b) Now if some other cards are also added to existing cards, we have 15 cards in total.

We have 4 face cards

Hence probability of Suhail to win is 4/15

We have 4 cards with 4 written on them.

So, probability of Reshma winning is 4/15

✦ Try This: Playing cards

(a) From a pack of cards the following cards are kept face down:
From a pack of cards the following cards are kept face down

Suhail fails if he picks up a face card. Find the probability of Suhail failing?

(b) Now the following cards are added to the above cards:
Now the following cards are added to the above cards

What is the probability of Suhail winning now? Reshma wins if she picks up a 3. What is the probability of Reshma winning? [Queen, King and Jack cards are called face cards.]

☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 5

NCERT Exemplar Class 8 Maths Chapter 2 Problem 99

Playing cards (a) From a pack of cards the following cards are kept face down: Suhail wins if he picks up a face card. Find the probability of Suhail winning, (b) Now the following cards are added to the above cards: What is the probability of Suhail winning now? Reshma wins if she picks up a 4. What is the probability of Reshma winning? [Queen, King and Jack cards are called face cards.]

Summary:

(i) Hence, probability of suhail to win is 1/7, (ii) Hence probability of Suhail to win is 4/15 and the probability of Reshma winning is 4/15

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