Math Is Fun Forum
You are not logged in.
- Topics: Active | Unanswered
#1951 2012-06-22 16:05:51
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Oral puzzles
Hi ganesh
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.
Offline
#1952 2012-06-22 18:48:56
- 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
#1953 2012-06-23 00:30:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi anonimnystefy and bobbym,
The solution #1502 is correct. Good work!
#1503. A train 150 meters long crosses a pole in 10 seconds. In how much time would it cross a platform 300 meters long?
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
#1954 2012-06-23 00:37:59
- 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
#1955 2012-06-23 21:11:21
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym,
The solution #1503 is correct. Excellent!
#1504. A train moving at the speed of 30 meters per second crosses a bridge of 180 meters long in 15 seconds. What is the length of the train?
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
#1956 2012-06-23 22:33:34
- 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.
Offline
#1957 2012-06-24 14:52:15
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym,
The solution #1504 is correct. Good work!
#1505. A 180 meters long train takes 20 seconds to cross a pole. In how much time would it cross a platform 216 meters long?
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
#1958 2012-06-24 14:58:35
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Oral puzzles
Hi ganesh
Btw, congrats on the 1500 mark! 
Last edited by anonimnystefy (2012-06-24 15:00:37)
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.
Offline
#1959 2012-06-24 19:26:53
- 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
#1960 2012-06-24 19:48:12
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi anonimnystefy and bobbym,
Thanks, anonimnystefy!
The solution #1505 is correct. Good work, anonimnystefy and bobbym!
#1506. Two trains each 220 meter long, are traveling at 45 kilometers per hour and 54 kilometers per hour respectively in opposite directions. In what time would they cross 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.
Offline
#1961 2012-06-24 20:25:06
- 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
#1962 2012-06-25 03:06:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym,
The solution #1506 is correct. Brilliant!
#1507. A train 100 meters long is running with a speed of 10 kilometers per hour. In what time (in seconds) would it pass a telegraph post?
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
#1963 2012-06-25 03:55:10
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Oral puzzles
HI ganesh
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.
Offline
#1964 2012-06-25 17:30:50
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi anonimnystefy,
The solution #1507 is correct. Good work!
#1508. A train 300 meters long is running with a speed of 60 kilometers per hour. In what time would it pass a tunnel 200 meters long?
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
#1965 2012-06-25 22:50:54
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Oral puzzles
Hi ganesh
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.
Offline
#1966 2012-06-25 23:21:13
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi anonimnystefy,
The solution #1508 is correct. Excellent!
#1509. Two trains 132 meters and 108 meters in length are running towards each other on parallel lines, one at the rate of 32 km/hour and another at 40 km/hour. In what time would they be clear to each other from the moment they meet?
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
#1967 2012-06-25 23:29:25
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Oral puzzles
Hi ganesh
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.
Offline
#1968 2012-06-26 01:57:58
- 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
#1969 2012-06-26 21:41:44
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi anonimnystefy and bobbym,
The solution #1509 is correct. Brilliant!
#1510. A and B together can do a piece of work in 16 days. A alone can do it in 24 days. How long would B take to complete it alone?
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
#1970 2012-06-27 01:13:29
- 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
#1971 2012-06-27 01:35:58
- anonimnystefy
- Real Member
- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,049
Re: Oral puzzles
Hi ganesh
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.
Offline
#1972 2012-06-28 00:32:14
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym and anonimnystefy,
The solution #1510 is correct. Well done!
#1511. Find the gain percent when Ram gains the Selling Price of 10 articles after selling 50 articles.
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
#1973 2012-06-28 01:21:48
- 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
#1974 2012-06-28 17:20:02
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,424
Re: Oral puzzles
Hi bobbym,
The solution #1511 is correct. Well done!
#1512. To fill a Cistern, pipes A, B, and C takes 15 minutes, 12 minutes, and 10 minutes respectively. What is the time taken in minutes to fill the three pipes together to fill the Cistern?
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
#1975 2012-06-28 20:27:58
- 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