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#7401 2017-03-20 19:32:41

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution set in #6127 is correct. Excellent, bobbym!

#6128. The coach of a cricket team buys 7 bats and 6 balls for Rs 3800. Later, he buys 3 bats and 5 balls for Rs 1750. Find the cost of each bat and each ball.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7402 2017-03-20 22:54:52

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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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#7403 2017-03-20 23:45:48

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6128 is correct. Keep it up, bobbym!

#6129. In a two digit number, the ten's digit is three times the unit's digit. When the number is decreased by 54, the digits are reversed. Find the number.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7404 2017-03-21 20:31:01

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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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#7405 2017-03-21 21:27:18

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6129 is correct. Good work, bobbym!

The sum of the digits of a two digit number is 8 and the difference between the number and that formed by reversing the digits is 18. Find the number.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7406 2017-03-21 23:46:14

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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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#7407 2017-03-22 14:46:45

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6130 is correct. Neat work, bobbym!

#6131. The sum of a two digit number and the number obtained by reversing the order of its digits is 121, and the two digits differ by 3. Find the number.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7408 2017-03-22 17:10:48

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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

#7409 2017-03-22 19:54:52

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6131 is correct. Neat work, bobbym!

#6132. The sum of a numerator and denominator of a fraction is 18. If the denominator is increased by 2, the fraction reduces to 1/3. Find the fraction.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7410 2017-03-22 20:30:45

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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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#7411 2017-03-22 22:59:14

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6132 is correct. Smart work, bobbym!

#6133. Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7412 2017-03-23 08:14:28

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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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#7413 2017-03-23 14:15:14

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

#6134. The sum of a two digit number and the number obtained by reversing the order of its digits is 99. If the digits differ by 3, find the number.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

Offline

#7414 2017-03-23 17:48:10

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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

#7415 2017-03-23 19:11:16

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6134 is correct. Neat work, bobbym!

#6135. When 3 is added to the denominator and 2 is subtracted from the numerator of a faction, it becomes 1/4. And when 6 is added to the numerator and the denominator is multiplied by 3, it becomes 2/3. Find the fraction.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7416 Yesterday 15:43:45

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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

#7417 Yesterday 17:02:37

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6135 is correct. Excellent, bobbym!

#6136. Six years hence a man's age will be three times the age of his son and three years ago he was nine times as old as his son. Find their present ages.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7418 Yesterday 19:13:49

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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

#7419 Today 00:10:07

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6136 is correct. Good work, bobbym!

#6137. The sum of the numerator and denominator of a fraction is 4 more than twice the numerator. If the numerator and denominator are increased by 3, they are in the ratio 2:3. Determine the fraction.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#7420 Today 02:54:14

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 108,492

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

#7421 Today 13:03:06

ganesh
Moderator
Registered: 2005-06-28
Posts: 22,600

Re: 10 second questions

Hi;

The solution #6137 is correct. Neat work, bobbym!

#6138. Ten years ago, a father was twelve times as old as his son and ten years hence, he will be twice as old as his son will be then. Find their present ages.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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