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#1526 2011-11-29 01:38:36

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution

Excellent, bobbym!

#1314. Which of the following is the largest?

a)


b)

c)

d)

e)


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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#1527 2011-11-29 01:48:40

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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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#1528 2011-11-30 00:34:14

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1314 is correct. Immaculate!

#1315. If 6 workers can finish a job in 3 hours, how long would it take for 5 workers to finish the same job?


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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#1529 2011-11-30 01:58:34

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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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#1530 2011-12-01 01:32:10

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

#1316. What is the Least Common Multiple 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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#1531 2011-12-01 08:01:07

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1532 2011-12-01 21:11:39

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1315 given by you is correct. My mistake! Regretted!

The solution #1316 is correct. Good work!

#1317. If

and
, find the value 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.

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#1533 2011-12-01 21:22:21

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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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#1534 2011-12-02 23:37:32

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1315 is perfect. Superlative!

#1316. Of the three numbers whose average is 60, the first is one-fourth of the sum of the others. What is the first 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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#1535 2011-12-03 05:18:23

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1536 2011-12-03 23:07:00

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1316 is perfect. Neat job!

#1317. The cost price of 15 articles is the same as the selling price of 10 articles. What is 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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#1537 2011-12-04 05:01:45

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1538 2011-12-05 02:00:15

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1317 is correct. Good work!

#1318. If the volumes of two cubes are in the ratio 27:1, find the ratio of their edges.


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

#1539 2011-12-05 06:41:43

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1540 2011-12-05 21:48:24

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1318 is correct. Well done!

#1319. The average income of 40 persons is $4200 and that of another 35 persons is $4000. Find the average income of the whole group,


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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#1541 2011-12-05 22:30:14

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1542 2011-12-05 23:01:30

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1319 is correct. Perfect!

#1320. 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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#1543 2011-12-05 23:21:56

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1544 2011-12-07 21:53:29

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1320 is correct. Good work!

#1321. If the amount is 2.25 times of the sum after 2 years at compound interest (compounded annually), what is the rate of interest per annum?


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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#1545 2011-12-07 21:59:33

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1546 2011-12-09 01:19:46

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1321 is correct. Good work!

#1322. By which smallest number 1323 must be multiplied so that it becomes a perfect cube?


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

#1547 2011-12-09 04:29:46

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1548 2011-12-09 23:47:03

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

#1323. What is the least number which when divided by 12, 15, 20, or 54 leaves a remainder of 4 in each case?


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

#1549 2011-12-10 06:29:23

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: Oral puzzles

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

#1550 2011-12-11 01:02:01

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,429

Re: Oral puzzles

Hi bobbym,

The solution #1323 is correct. Neat job!

#1324. A man spends 1/4 of his income on food, 2/3 of it on house rent, and remaining which is $630 on other commodities. Find his house rent.


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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