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#3151 2011-09-16 18:38:06
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solution #3247 is correct. Well done!
#3248. In a simultaneous throw of two dice, what is the probability of getting a total of 10 or 11?
#3249. Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3152 2011-09-16 21:33:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3153 2011-09-16 23:40:28
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solutions #3248 and #3249 are correct. Excellent!
#3250. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability of the ticket drawn bears a number which is a multple of 3?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3154 2011-09-17 02:27:25
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3155 2011-09-17 23:25:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solution #3250 is correct. Well done!
#3251. Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability of getting the ticket drawn bears a number which is a multple of 3?
#3252. In a lottery, there are 10 prizes and 25 blanks. A lottery is is drawn at random. What is the probability of getting a prize?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3156 2011-09-17 23:27:16
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3157 2011-09-18 00:01:49
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solution .
The solution #3252 is correct. Good work!
#3253. One card is drawn at random from a pack of 52 cards. What is the probability of the card drawn is a face card?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3158 2011-09-18 00:10:52
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3159 2011-09-18 00:37:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
Your solution #3251 is correct. I made a mistake in the problem, sorry!
The solution #3253 is correct. Well done!
#3254. One card is drawn from a pack of 52 cards. What is the probability of the card drawn is either a red card or a king?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3160 2011-09-18 00:45:18
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
That is okay.
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3161 2011-09-18 09:52:48
- Stormtangent
- Member
- Registered: 2011-09-03
- Posts: 33
Re: 10 second questions
"Have you ever had a dream that you were so sure was real? What if you were unable to wake from that dream? How would you know the difference between the dream world and the real world? "
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#3162 2011-09-18 23:21:09
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym and Stormtangent,
The solution #3254 is correct. Well done!
#3255. From a pack of 52 cards, one card is drawn at random. What is the probability that the card drawn is a ten or a spade?
#3256. From a pack of 52 cards, two cards are drawn together at random. What is the probability of both the cards being kings?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3163 2011-09-18 23:23:54
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3164 2011-09-19 17:13:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solutions #3255 and #3256 are correct. Brilliant!
#3257. A person crosses a 600 meter long street in 5 minutes. What is his speed in kilometers per hour?
#3258. A man walking at the rate of of 5 kilometers per hour crosses a bridge in 15 minutes. What is the length of the bridge in meters?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3165 2011-09-19 17:22:08
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3166 2011-09-20 00:07:59
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solutions #3257 and #3258 are correct. Good work!
#3259. How long would a boy take to run round a square field of 35 meters, if he runs at the rate of 9 kilometers per hour?
#3260. A car is running at a speed of 108 kilometers per hour. What distance would it cover in 15 seconds?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3167 2011-09-20 00:13:05
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3168 2011-09-20 17:03:25
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solutions #3259 and #3260 are correct. Brilliant!
#3261. One of the two buses completes a journey of 300 kilometers in 7.5 hours and the other a journey of 450 kilometers in 9 hours. Find the ratio of their average speeds.
#3262. A truck covers a distance of 550 meters in 1 minute whereas a bus covers a distance of 33 kilometers in 45 minutes. Find the ratio of their speeds.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3169 2011-09-20 17:23:45
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3170 2011-09-21 02:00:02
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solutions #3261 and #3262 are correct. Neat job!
#3263. A man in a train notices that he can count 21 telephone posts in one minute. If they are known to be 50 meters apart, then at what speed is the train traveling?
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3171 2011-09-21 02:02:11
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3172 2011-09-21 20:17:10
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solution #3263 is correct. Well done!
#3264. If the mean of 5 observatioms x, x + 2, x + 4, x + 6, and x + 8 is 11, then what the mean of the last three observations?
#3265. If the mean of a, b, c is M and ab + bc + ac = 0, then what is the mean of
?It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3173 2011-09-21 20:55:46
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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#3174 2011-09-21 23:40:35
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,413
Re: 10 second questions
Hi bobbym,
The solution #3264 is perfect. Well done!
The solution .
#3266. Find the average of all odd numbers up to 100.
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3175 2011-09-21 23:46:28
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.
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