Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#3426 2011-12-03 00:42:32
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3427 2011-12-03 05:29:08
- 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.
Offline
#3428 2011-12-03 22:56:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi phrontister and bobbym,
The solution #3433 . Excellent, phrontister!
The solution #3434 is correct. Excellent, phrontister and bobbym!
#3435. The sides of a rectangular plot are in the ratio 5:4 and its area is equal to 500 square meters. Find the perimeter of the plot.
#3436. The edges of a cuboid are in the ratio 1 : 2 : 3 and its surface area is 88 square centimeters. Find the volume of the cuboid.
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.
Offline
#3429 2011-12-04 01:56:52
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3430 2011-12-04 05:15:58
- 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
#3431 2011-12-05 01:52:08
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi phrontister and bobbym,
The solutions #3435 and #3436 are correct. Astounding!
#3437. Find the length of the largest rod that can be placed in a room 16 meter long, 12 meter broad, and
meter high.#3438. The radius of a wheel is 21 centimeters. How many revolutions would it make in travelling 924 meters?
(Use
)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.
Offline
#3432 2011-12-05 03:42:17
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
Last edited by phrontister (2011-12-05 09:53:33)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3433 2011-12-05 07:02:31
- 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
#3434 2011-12-05 21:41:37
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi phrontister and bobbym,
The solutions #3437 and #3438 are both correct. Excellent!
The solution #3437 is correct. Good work! The solution #3438 is 700 revolutions.
#3439. A man buys 12 articles for $12 and sells them at the rate of $1.25 per article. What is his gain percentage?
#3440. The area of a sector of a circle of radius 5 cm. What is the area of arc of length 3.5 cm formed?
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.
Offline
#3435 2011-12-05 22:33:35
- 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
#3436 2011-12-05 22:55:53
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi bobbym,
The solution #3439 is correct. Excellent!
(I think I made a mistake in the problem #3440)
#3441. 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.
Offline
#3437 2011-12-05 22:58:28
- 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.
Offline
#3438 2011-12-05 23:17:18
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3439 2011-12-05 23:19:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi bobbym,
The solution #3441 is correct. Smart work!
#3442. If log[sub]10[/sub]2 = 0.3010 and log[sub]10[/sub]7 = 0.8451, then what is the value of log[sub]10[/sub]2.8?
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.
Offline
#3440 2011-12-05 23:34:59
- 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
#3441 2011-12-06 00:54:44
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi bobbym,
The solution #3442 is correct. Outstanding!
#3443. Successive discounts of 10% and 30% are equivalent to a single discount of what percent?
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.
Offline
#3442 2011-12-06 02:39:42
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
I've just noticed that your problem #3430 matches that post's number...which must be significant!
Were my answers in my post #3450 ok?
Last edited by phrontister (2011-12-06 11:18:33)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3443 2011-12-06 07:48:24
- 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
#3444 2011-12-07 21:23:12
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi bobbym and phrontister,
bobbym : The solution #3443 is correct. Good work!
phrontister : The solutions #3442 and #3443 are correct. Excellent! The solutions #3439 and #3441 are correct. Brilliant!
#3444. If 60% of the students in a school are boys and the number of girls is 972, how many boys are there in the school?
#3445. If 8% of x is the same as 4% of y, then 20% of x is the same as what percent of y?
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.
Offline
#3445 2011-12-07 21:31:33
- 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
#3446 2011-12-07 23:33:08
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
Last edited by phrontister (2011-12-08 02:18:12)
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3447 2011-12-09 01:14:03
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi bobbym and phrontister,
The solutions #3444 and #3445 are correct. Brilliant!
#3446. A number when divided by 899 gives a remainder 63. If the same number is divided by 29, what would the remainder be?
#3447. If 3 times a number exceeds its 3/5 by 60, then what is 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.
Offline
#3448 2011-12-09 04:34:11
- 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
#3449 2011-12-09 09:57:01
- phrontister
- Real Member
- From: The Land of Tomorrow
- Registered: 2009-07-12
- Posts: 4,876
Re: 10 second questions
Hi ganesh,
"The good news about computers is that they do what you tell them to do. The bad news is that they do what you tell them to do." - Ted Nelson
Offline
#3450 2011-12-09 23:27:47
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,389
Re: 10 second questions
Hi bobbym and phrontister,
The solutions #3446 and #3447 are correct. Fantastic!
#3448. The numerator and denominator of a fraction are in the ratio 2 : 3. If 6 is subtracted from the numerator, the result of the fraction has a value 2/3 of the original fraction. What is the numertor of the original fraction?
#3449. A sum of $10,000 is lent partially at 8 % and remaining at 10 % per annum. If the yearly interest on the average is 9.2%, what are the two parts?
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.
Offline