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#4676 2014-04-06 01:06:16
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Re: 10 second questions
Last edited by ShivamS (2014-04-06 03:35:17)
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#4677 2014-04-06 03:30:12
- 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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#4678 2014-04-07 01:44:05
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi ShivamS and bobbym,
The solutions #4760 and #4761 are correct. Excellent, ShivamS and bobbym!
#4762. Find the average of all prime numbers between 30 and 50.
#4763. Find the average of first 40 natural numbers.
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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#4679 2014-04-07 05:25:18
- 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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#4680 2014-04-07 07:48:00
- ShivamS
- Member
- Registered: 2011-02-07
- Posts: 3,648
Re: 10 second questions
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#4681 2014-04-08 00:04:07
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym and ShivamS,
The solutions #4762 and #4763 are correct. Neat work!
#4764. Find the average of first 20 multiples of 7.
#4765. The average of four consecutive even numbers is 27. Find the largest of these numbers.
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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#4682 2014-04-08 00:13:39
- 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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#4683 2014-04-08 00:14:24
- 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.
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#4684 2014-04-09 00:06:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4764 and #4765 are correct. Neat work!
#4766. Of the three numbers, second is twice the first and is also thrice the third. If the average of the three numbers is 44, find the largest number.
#4767. The average of 25 results is18. The average of first twelve of them is 14 and that of last twelve is 17. Find the thirteenth result.
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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#4685 2014-04-09 03:46:18
- 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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#4686 2014-04-09 23:47:40
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4766 and #4767 are correct. Good work!
#4768. The average of 11 results is 60. If the average of first six results is 58 and that of the last six is 63, find the sixth result.
#4769. The average weight of A, B, C is 45 kilograms. If the average weight of A and B be 40 kilograms and that of B and C be 43 kilograms, find the weight of B.
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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#4687 2014-04-10 03:33:05
- 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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#4688 2014-04-10 23:31:50
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solution #4768 is correct. Neat work!
The solution #4769
#4770. Find the average of first five multiples of 3.
#4771. What is the average of first nine prime numbers?
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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#4689 2014-04-11 01:05:14
- 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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#4690 2014-04-11 18:12:48
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4770 and #4771 are correct. Good work!
#4772. A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9, 15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the number in place of x?
#4773. The average of 2, 7, 6 and x is 5 and the average of 18, 1, 6, x and y is 10. What is 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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#4691 2014-04-11 19:48:14
- 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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#4692 2014-04-12 17:17:53
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4772 and #4773 are correct. Fantastic!
#4774. If the mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then find the mean of the last three observations.
#4775. If the mean of a, b, c is M and ab + bc + ca = 0, then what is the mean of a², b², c²?
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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#4693 2014-04-12 18:28:11
- 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.
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#4694 2014-04-13 01:08:29
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4774 and #4775 are correct. Fantastic!
#4776. Find the average of first 50 natural numbers.
#4777. Find the mean of 1², 2², 3², 4², 5², 6², and 7².
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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#4695 2014-04-13 02:31:15
- 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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#4696 2014-04-13 15:38:46
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4776 and #4777 are correct. Neat work!
#4778. Find the average of all odd numbers up to 100.
#4779. If a, b, c, d, and e are five consecutive odd numbers, what is their average?
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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#4697 2014-04-13 20:34:02
- 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.
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#4698 2014-04-14 03:11:45
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4778 and #4779 are correct. Good work!
#4780. The average of a non-zero number and its square is 5 times the number. Find the number.
#4781. The average of 7 consecutive numbers is 20. What is the largest of these numbers?
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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#4699 2014-04-14 03:17:27
- 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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#4700 2014-04-14 20:13:06
- Jai Ganesh
- Administrator
- Registered: 2005-06-28
- Posts: 48,421
Re: 10 second questions
Hi bobbym,
The solutions #4780 and #4781 are correct. Immaculate!
#4782. The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers?
#4783. The sum of three consecutive odd numbers is 38 more than the average of these numbers. What is the first of these numbers?
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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