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#4826 2014-05-20 13:53:03

ShivamS
Member
Registered: 2011-02-07
Posts: 3,646

Re: 10 second questions


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#4827 2014-05-20 14:49:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4828 2014-05-21 02:19:10

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi ShivamS and bobbym,

The solutions #4975 and #4976 are correct. Marvelous!

#4977. If

and
, find the value of
.

#4978. If a + b + c = 13,

, find the value of
ab + bc + ca.


Character is who you are when no one is looking.

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#4829 2014-05-21 02:36:19

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4830 2014-05-22 00:40:53

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym,

The solutions #4977 and #4978 are correct. Excellent!

#4979. If

and x + y = 3z, then find the value of z.

#4980.


Character is who you are when no one is looking.

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#4831 2014-05-22 01:22:45

anonimnystefy
Real Member
From: Harlan's World
Registered: 2011-05-23
Posts: 15,937

Re: 10 second questions

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.

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#4832 2014-05-22 01:55:51

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4833 2014-05-22 13:58:51

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi anonimnystefy and bobbym,

The solution #4980 is perfect, anonimnystefy! Excellent!
bobbym, I made a mistake in the problem; regretted.

#4981.


Character is who you are when no one is looking.

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#4834 2014-05-22 20:27:31

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4835 2014-05-23 00:59:51

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym,

The solution #4981 is perfect. Splendid!

#4982. Find the value of x

.

#4983


Character is who you are when no one is looking.

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#4836 2014-05-23 03:06:41

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4837 2014-05-23 15:53:06

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym,

#4984. How many pieces of 85 cm length can be cut from a rod 42.5 meters long?

#4985.


Character is who you are when no one is looking.

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#4838 2014-05-24 01:33:07

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4839 2014-05-24 02:11:31

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym,

The solution [hide=#4984]I get 50.
Number of pieces = 42.5 x 100/85 = 4250/85 = 50

The solution #4985 is perfect. Exemplary!

PS : Thanks for the replies. I shall post 'English Language Puzzles' soon.

#4986.


Character is who you are when no one is looking.

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#4840 2014-05-24 02:20:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4841 2014-05-24 19:04:47

Denominator
Member
Registered: 2009-11-23
Posts: 155

Re: 10 second questions

Hello

Thanks smile

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#4842 2014-05-24 22:46:02

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym and Denominator,

The solution #4986 is correct. Stupendous!

#4987. If

, then what is the value of
?

#4988. Given

and
,
find the value of
.


Character is who you are when no one is looking.

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#4843 2014-05-24 23:18:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4844 2014-05-25 03:49:57

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym,

The solutions #4987 and #4988 are correct. Magnificent!

#4989.

#4990.


Character is who you are when no one is looking.

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#4845 2014-05-25 04:02:04

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

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.

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#4846 2014-05-25 04:04:07

ShivamS
Member
Registered: 2011-02-07
Posts: 3,646

Re: 10 second questions

I need a little explanation on how 4990 can be done in about 10 seconds.

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#4847 2014-05-25 04:07:08

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

Re: 10 second questions

It can be shortened algebraically but still required a calculator.


In mathematics, you don't understand things. You just get used to them.

If it ain't broke, fix it until it is.

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#4848 2014-05-25 04:09:54

ShivamS
Member
Registered: 2011-02-07
Posts: 3,646

Re: 10 second questions

Okay, because I thought I was missing something.

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#4849 2014-05-25 04:10:49

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 96,664

Re: 10 second questions

I can not even write the problems down in less than a minute. 10 seconds, I am too slow for that.


In mathematics, you don't understand things. You just get used to them.

If it ain't broke, fix it until it is.

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#4850 2014-05-25 04:22:52

ganesh
Moderator
Registered: 2005-06-28
Posts: 17,279

Re: 10 second questions

Hi bobbym and ShivamS,

I made a mistake owing to my poor vision. The problem actually stated:

#4990.

The corrected version :

#4990.

Inconvenience regretted!


Character is who you are when no one is looking.

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