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#3201 2011-09-30 00:33:45
- 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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#3202 2011-10-01 00:54:54
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solution #3284 is correct. Well done!
The solution
#3286. A shopkeeper expects a gain of 22.5 % on his cost price. If in a week, his sale was $392, what was his profit?
#3287. The sale price of an article including the sale tax is $616. The rate of sales tax is 10%. If the shopkeeper has made a profit of 12%, then what is the cost price of the article?
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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#3203 2011-10-01 00:59:39
- 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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#3204 2011-10-01 23:24:18
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solution #3287 is correct. Excellent!
#3288. A trader buys a chair for $600 and sells it for $765 at a credit of 4 months. Reckoning money worth 6% per annum, what is his gain percent?
#3289. When a plot is sold for $18,700, the owner loses 15%. At what price must the plot be sold in order to gain 15%?
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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#3205 2011-10-01 23:33:22
- 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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#3206 2011-10-03 00:26:49
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solution #3289 is correct. Excellent!
#3290. If the Selling Price of an article is
of its cost price, what is the profit in the transaction (%)?#3291. The ratio of the cost price and the selling price is 4:5. Find the profit 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.
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#3207 2011-10-03 00:39:17
- bobbym
- bumpkin
- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606
Re: 10 second questions
Hi ganesh;
Thanks for help! I only get slightly less than half of these money problems right.
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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#3208 2011-10-03 23:14:58
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solution #3290 is correct. Well done!
#3292. The present ages of three persons are in the proportions 4:7:9. Eight years ago, the sum of the ages was 56. Find their present ages (in years).
#3293. The ratio of the ages of a man and his wife is 4:3. After 4 years, this ratio would be 9:7. If at the times of marriags, the ratio was 5:3, then how many years ago were they married?
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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#3209 2011-10-03 23:41:08
- 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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#3210 2011-10-03 23:44:03
- 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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#3211 2011-10-04 23:16:30
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solutions #3292 and #3293 are correct. Excellent!
#3294. A cubic centimeter of iron is drawn into a wire of diameter 3.5 millimeters. Find the length of the wire. (Use
)#3295. If
, find .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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#3212 2011-10-04 23:44:00
- 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
#3213 2011-10-06 00:12:42
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solutions #3294 and #3295 are perfect. Excellent!
#3296. Find the point that divides the line joining (3,4), and (-6,2) externally in the ratio 1:3.
#3297. Prove that the lines 3x + 4y + 7 = 0 and 28x - 21y + 50 = 0 are perpendicular to each other.
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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#3214 2011-10-06 00:24:47
- 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
#3215 2011-10-06 00:41:51
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The
The solution #3298 is correct. Well done!
#3299. X and Y appeared in an interview. The chance of X's selection is 1/5 and Y's selection is 1/7. Find the chance that none of them are selected.
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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#3216 2011-10-06 00:45:37
- 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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#3217 2011-10-07 00:17:20
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solution #3299 is correct. Good work!
#3300. Find the quotient and remainder when
is divided by (x + 1) using synthetic division.#3301. Find the square root 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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#3218 2011-10-07 00:28:46
- 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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#3219 2011-10-07 05:00:02
- Howardroark
- Member
- Registered: 2010-10-10
- Posts: 382
Re: 10 second questions
Hi ganesh,
I come from a civilization which has given the world the number 0..
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#3220 2011-10-07 05:01:04
- Howardroark
- Member
- Registered: 2010-10-10
- Posts: 382
Re: 10 second questions
Hi,
I come from a civilization which has given the world the number 0..
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#3221 2011-10-08 01:47:37
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym and Howardroark,
The solutions #3300 and #3301 are perfect. Excellent!
#3302. Find the sum of all multiples of 9 between 400 and 600.
#3303. A hemispherical bowl of radius 30 cm is filled with soap paste. If paste is made into cylindrical soap cakes each of radius 5 cm and height 2 cm, how many cakes do we get?
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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#3222 2011-10-08 01:58:50
- 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.
Offline
#3223 2011-10-09 00:10:43
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 46,182
Re: 10 second questions
Hi bobbym,
The solutions #3302 and #3303 are perfect. Excellent!
#3304. Find the sum to n terms of the Geometric Progression 3 + (-6) + 12 + ....
#3305. Determine whether (x - 1) is a factor 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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#3224 2011-10-09 00:16:11
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: 10 second questions
hi ganesh
Last edited by anonimnystefy (2011-10-09 00:19:49)
Here lies the reader who will never open this book. He is forever dead.
Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment
The knowledge of some things as a function of age is a delta function.
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#3225 2011-10-09 00:25:40
- 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