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#3626 2012-01-28 03:14:50
- 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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#3627 2012-01-29 01:26:50
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solution #3560 is correct. Good work!
#3561. A book-seller bought 200 textbooks for $12,000. He wanted to sell them at a profit so that he got 20 books free. At what profit percent should he sell them?
#3562. The volumes of two spheres are in the ratio 8 : 27. What is the ratio of their surface areas?
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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#3628 2012-01-29 02:26:44
- 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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#3629 2012-01-30 01:49:00
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solutions #3561 and #3562 are correct. Good work!
#3563. How many cubes, each of edge 3 centimeters, can be cut from a cube of edge 15 centimeters?
#3564. If a sum of money is to be divided among A, B, and C such that A's share is equal to twice B's share and B's share is 4 times C's share, then what is the ratio of their shares?
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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#3630 2012-01-30 01:52:26
- 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.
Offline
#3631 2012-01-31 01:52:11
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solutions #3563 and #3564 are correct. Brilliant!
#3565. A, B, and C rent a pasture. A puts in 10 oxen for 7 months, B 12 oxen for 5 months, and C 15 oxen for 3 months for grazing. If the rent of the pasture is $175, for how much must C pay as his share of rent?
#3566. A reduction of 20% in the price of oranges enables a man to buy 5 oranges more for $10. What was the price of an orange before reduction?
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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#3632 2012-01-31 02:00:02
- 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.
Offline
#3633 2012-02-01 01:42:33
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solutions #3565 and #3566 are correct. Good work!
#3567. What sum of money must be given at simple interest for six months at 4% per annum in order to earn $150 interest?
#3568. If 120 is 20% of a number, then what is 120% of that 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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#3634 2012-02-01 01:49:56
- 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.
Offline
#3635 2012-02-01 02:15:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solution #3568 is correct. Good work!
#3569.
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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#3636 2012-02-01 02:24:30
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi;
You are corect about #3567, I read the problem wrong.
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.
Offline
#3637 2012-02-02 01:29:52
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solution #3569 is correct. Excellent!
#3570. The average of 11 numbers is 10.8. If the average of the first six be 10.4 and that of the last six 11.5, then what is the middle number (6th number)?
#3571. By selling an article for $240, a man incurs a loss of 10%. At what price should he sell it so that he makes a profit of 20%?
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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#3638 2012-02-02 01:48:36
- 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.
Offline
#3639 2012-02-03 01:44:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solutions #3570 and #3571 are correct. Neat work!
#3572. A train is traveling at the rate of 45 kilometers per hour. How many seconds would it take to cover a distance of
kilometer?#3573. If a and b are positive integers such that
, then 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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#3640 2012-02-03 03:42:49
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
Re: 10 second questions
igloo myrtilles fourmis
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#3641 2012-02-03 03:48:58
- John E. Franklin
- Member
- Registered: 2005-08-29
- Posts: 3,588
Re: 10 second questions
Last edited by John E. Franklin (2012-02-03 03:51:49)
igloo myrtilles fourmis
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#3642 2012-02-03 06:05:14
- 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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#3643 2012-02-04 02:12:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi John E Franklin, and bobbym,
The solutions #3572 and #3573 are correct. Excellent!
#3574. Three numbers are in the ratio 2 : 7 : 5. If the smallest number is doubled and added to the largest number, the answer is 132. What is the middle number?
#3575. 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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#3644 2012-02-04 05:53:52
- 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.
Offline
#3645 2012-02-05 01:27:54
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The
The solution #3575 is correct. Well done!
#3576. A class has 40% boys. If 20% of boys and 30% of girls wrote a paper and in all, 52 persons wrote the paper, what is the strength of the class?
#3577.
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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#3646 2012-02-05 04:11:12
- 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.
Offline
#3647 2012-02-05 20:59:02
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solutions #3574, #3576. and #3577 are correct. Neat work!
#3578. What are the natue of the roots of the equation x[sup]2[/sup] + 6x + 7 = 0?
#3579. The third term of Geometric Progression is 3. Find the product of first five terms.
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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#3648 2012-02-05 21:20:17
- 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.
Offline
#3649 2012-02-07 00:53:24
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,395
Re: 10 second questions
Hi bobbym,
The solutions #3578 and #3579 are correct. Brilliant!
#3580. A man gains 20% by selling an article for a certain price. If he sells it at double the price, what would be the percentage of profit?
#3581. There are $225 consisting on 1$ note, 50 cents and 25 cents. The ratio of their numbers in that order is 8 : 5 : 3. Find the number of one dollar notes.
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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#3650 2012-02-07 01:40:01
- 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.
Offline