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#5701 2018-02-03 00:18:49

ganesh
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Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

.

#3906. Cards marked with one of the numbers 4, 5, 6,  ..., 20 are placed in a box and mixed thoroughly. One card is drawn at random from the box. What is the probability of getting an even number?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5702 2018-02-04 14:27:03

Monox D. I-Fly
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From: Indonesia
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Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5703 2018-02-04 15:36:08

ganesh
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Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3906 is correct. Excellent, Monox D. I-Fly!

#3907. A bag contains 5 red, 8 green, and 7 white balls. One balls is drawn at random from the bag. What is the probability of getting a white ball or a green ball?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5704 2018-02-04 19:13:17

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5705 2018-02-04 21:20:08

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3907 is correct. Neat work, Monox D. I-Fly!

#3908. Tickets numbered from 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability of getting a ticket drawn which bears a number which is a multiple of 3?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5706 2018-02-05 17:26:30

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5707 2018-02-05 18:23:58

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3908 is correct. Neat work, Monox D. I-Fly!

#3909. Two coins are tossed simultaneously. What is the probability of getting at least one head?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5708 2018-02-05 19:07:12

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5709 2018-02-05 19:25:52

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3909 is correct. Neat work, Monox D. I-Fly!

#3910. Two dice are rolled simultaneously. Find the probability of showing different faces.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5710 2018-02-05 20:12:22

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5711 2018-02-05 23:32:35

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3910 is correct. Neat work, Monox D. I-Fly!

#3911. From the lerrers of the word 'MOBILE', a letter is selected. Find the probability of the letter being a vowel.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5712 2018-02-06 13:05:45

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5713 2018-02-06 17:31:26

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3911 is correct. Good work, Monox D. I-Fly!

#3912. A two-digit number is chosen at random. Find the probability of the number being chosen is a multiple of 3.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5714 2018-02-06 20:48:06

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5715 2018-02-06 21:53:22

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3912 is correct. Neat work, Monox D. I-Fly!

#3913. What is the probability of a leap-year having 52 Mondays?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5716 2018-02-07 17:31:19

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

.

#3914. A card is drawn at random from a well shuffled deck of 52 cards. What is the probability of getting an Ace?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5717 2018-02-07 18:56:57

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5718 2018-02-07 19:57:16

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3914 is correct. Good work, Monox D. I-Fly!

#3915. Find the value of

, if
denote the complement or negation of an event E?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5719 2018-02-08 16:13:07

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5720 2018-02-08 18:40:53

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3915 is correct. Excellent, Monox D. I-Fly!

#3916. One card is drawn from a pack of 52 cards, each of the cards being equally likely to be drawn. Find the probability of the card drawn being
(i) an ace
(ii) red
(iii) either red or king.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5721 2018-02-08 20:14:23

Monox D. I-Fly
Member
From: Indonesia
Registered: 2015-12-02
Posts: 1,252

Re: Oral puzzles


Actually I never watch Star Wars and not interested in it anyway, but I choose a Yoda card as my avatar in honor of our great friend bobbym who has passed away. May his adventurous soul rest in peace at heaven.

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#5722 2018-02-08 22:53:56

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

The solution #3916 (i) and (ii) is correct. Neat work, Monox D. I-Fly!

.

#3917. One card is drawn from a pack of 52 cards, each of the cards being equally likely to be drawn. Find the probability of the card drawn being
(i) a red and a king
(ii) a face card.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5723 2018-02-09 16:35:30

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

#3918. What is the probability of a number selected from the numbers 1, 2, 3, 4, ..., 25 is a prime number, when each of the given numbers is likely to be selected?


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5724 2018-02-11 00:12:35

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

#3919. One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability of the card being drawn is
(i) a face card
(ii) a red face card.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#5725 2018-02-13 00:22:41

ganesh
Administrator
Registered: 2005-06-28
Posts: 25,595

Re: Oral puzzles

Hi,

.

#3920. One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability of the card being drawn is
(i) '2' of spades
(ii) '10' of black suit.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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