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#3301 2011-11-02 21:54:21
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3355 is correct. Brilliant!
Now, try to solve the problem #3356.
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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#3302 2011-11-02 22:01:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
Sorry, I did not see that one:
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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#3303 2011-11-03 00:08:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3356 is correct. Neat job!
#3357.
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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#3304 2011-11-03 06:12:28
- 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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#3305 2011-11-04 00:17:57
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3357 is perfect. Brilliant!
#3358. What is the Greatest Common Divisor of
?#3359. 15% of 60 added to 20% of which number gives 74?
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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#3306 2011-11-04 00:27:25
- 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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#3307 2011-11-04 15:15:02
- reconsideryouranswer
- Member
- Registered: 2011-05-11
- Posts: 171
Re: 10 second questions
#3350. Which is the prime number divisible by
?
I have been reading posts back and forth about this. This sum,
which is even, does not divide any prime number.
The question could have been "Which prime number divides this sum?"
2 would be an answer.
But, if the question meant was to determine the largest prime
number that divides (into) this sum, then the question stated
should be along the lines of:
"What is the largest prime that divides
Signature line:
I wish a had a more interesting signature line.
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#3308 2011-11-04 21:16:55
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym and reconsideryouranswer,
bobbym : The solutions #3358 and #3359 are correct. Neat job!
reconsideryouranswer : The solution #3350 is 2; perfectly in order! The other solutions 5 and 17 are the next!
Your solution is correct. Excellent!
That was my mistake. Regretted!
#3360. In a class, Raju's position is 16th from the top and 24th from the bottom. How many students are there in this class?
#3361. The sum of the squares of the ages of Ram and Shyam is 157. If the product of their ages is 66, find the difference of their ages.
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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#3309 2011-11-04 22:33:53
- 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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#3310 2011-11-05 00:33:23
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3360 and #3361 are perfect. Good work!
#3362. Find the value of x if
.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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#3311 2011-11-05 00:37:14
- 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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#3312 2011-11-05 01:17:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3362 is correct. Good work!
#3363. Find the value of x if
.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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#3313 2011-11-05 01:20:31
- 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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#3314 2011-11-05 16:29:31
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solution #3363 is perfect. Neat job!
#3364. An equilateral triangle of side 6 cm has its corners cuts off to form a regular hexagon. What is the area of the hexagon?
#3365. A candle 8 cm long burns at the rate of 3 cm in 2 hours. Another candle, 5½ cm long, burns at the rate of 2 cm in 3 hours. After what time would both the candles be of the same length?
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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#3315 2011-11-05 21:01:24
- 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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#3316 2011-11-06 00:15:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3364 and #3365 are perfectly in order. Excellent!
#3366. Find the value 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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#3317 2011-11-06 00:25:12
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
I put the explantion for the problem # 1290 in the Oral Puzzles thread as you asked.
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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#3318 2011-11-06 01:10:36
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
Thanks for the solution #1290 in the Orl Puzzles thread.
Regarding the solution #3366, I get 16.
#3367. What is the fraction form of the number
?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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#3319 2011-11-06 01:20:42
- Arthur Bon Zavi
- Member
- Registered: 2011-10-30
- Posts: 121
Re: 10 second questions
Last edited by Arthur Bon Zavi (2011-11-06 01:21:06)
In the heart of the night, when it's dark in the lights; I heard the loudest voice - a gun shot on the floor.
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#3320 2011-11-06 08:59:50
- 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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#3321 2011-11-07 00:25:00
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi Arthur Bon Zavi and bobbym,
The solution #3367 is correct. Neat job!
#3368. A starts a business with $10,000 and B joins him later with a capital of $40,000. If at the end of the year, they both get an equal share of the profit, how many months after the business started join B join it?
#3369. If the simple interest on a sum of 2 years at 5% per annum is $50, what is the compound interest on the same sum at the same rate and for the same time?
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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#3322 2011-11-07 00:29:14
- 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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#3323 2011-11-07 16:40:56
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The
The solution #3369 is correct. Good work!
#3370. A student rides on bicycle at 8 km/hour and reaches his school 2.5 minutes late. The next day, he increases his speed to 10 km/hour and reaches 5 minutes early. How far is the school from his house?
#3371. The Greatest Common Divisor of two numbers is 16 and their Least Common Multiple is 160. If one of the numbers is 32, then find the other number.
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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#3324 2011-11-07 18:18:02
- 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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#3325 2011-11-08 00:36:56
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,385
Re: 10 second questions
Hi bobbym,
The solutions #3370 and #3371 are perfect. Intelligent work!
#3372. A rectangular sheet of metal is 30 cm by 14 cm. Equal sides of 3 cm are cut off at the 4 corners and the remainder is folded up to form an open rectangular box. Find the volume of the box.
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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