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#6701 2020-10-15 00:08:07

ganesh
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Posts: 31,710

Re: Oral puzzles

Hi,

#4845. When a student weighing 46 kilograms left a class, the average weight of the remaing 59 students increased by 300 grams. What is the average weight of the remaining 59 students?


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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#6702 2020-10-17 00:07:08

ganesh
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Posts: 31,710

Re: Oral puzzles

Hi,

#4846. If x:y = 3:2, and y:z = 6:5, then find x:y:z.


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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#6703 2020-10-19 00:09:51

ganesh
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Posts: 31,710

Re: Oral puzzles

Hi,

#4847. If a:b = 1:2 and b:c = 3:4, find a:c.


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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#6704 2020-10-21 00:04:19

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4848. If x:y = 1:2, y:z = 3:4, z:w = 5:6, w:t = 7:8, then find x:t.


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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#6705 2020-10-23 00:06:37

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

4849. X:Y:Z = 2:3:4, find


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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#6706 2020-10-25 00:03:58

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4850. If A = 2B = 3C, find A:B:C.


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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#6707 2020-10-27 00:05:27

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4851. Find A : B : C if


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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#6708 2020-10-29 00:01:47

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4852. If A = 2B and 3B = 4C, find A : C.


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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#6709 2020-10-31 00:07:56

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4853. If 2 : y = 4 : 3, find y.


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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#6710 2020-11-02 00:03:10

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4854. If x:y = 3:4, then find (7x - 4y):(3x + y).


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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#6711 2020-11-02 01:51:09

Denominator
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Registered: 2009-11-23
Posts: 184

Re: Oral puzzles

Hello,

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#6712 2020-11-02 03:28:18

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

Neat work!

#4855. If 10% of x = 30% of y, find x : y.


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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#6713 2020-11-03 00:13:55

Denominator
Member
Registered: 2009-11-23
Posts: 184

Re: Oral puzzles

Hello,

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#6714 2020-11-03 00:23:08

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

The solution #4855 is correct. Good work!

#4856. If a:b = 3:1, find


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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#6715 2020-11-04 00:24:44

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4857. If

find a : b.


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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#6716 2020-11-06 00:07:11

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4858. If a : 4 = b : 3, find (a + 4) : (b + 3).


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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#6717 2020-11-08 00:04:41

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4859. If 2a = 3b = 6c, then find (a + b + c)/a.


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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#6718 2020-11-10 00:03:01

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4860. If a : b = c : d = e : f = 1 : 2, then find (3a + 5c + 7e) : (3b + 5d + 7f).


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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#6719 2020-11-10 17:18:32

Denominator
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Registered: 2009-11-23
Posts: 184

Re: Oral puzzles

Hello,

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#6720 2020-11-10 19:37:23

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

Neat work!

#4861. If x : y = 3 : 4 and y : z = 3 : 4, find the value of


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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#6721 2020-11-12 00:07:36

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4862. If (x + y) : (y + z) : (z + x) = 5 : 7 : 8 and x + y + z = 10, what is the value of z?


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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#6722 2020-11-14 00:04:56

ganesh
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Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4863. If (a + b) : (b + c) : (c + a) = 1 : 2 : 3 and a + b + c = 12, find the value of c.


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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#6723 2020-11-16 00:03:32

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4864. If the ratio of x to y is 25 times the ratio of y to x, what is the ratio of x to y?


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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#6724 2020-11-18 00:15:52

ganesh
Administrator
Registered: 2005-06-28
Posts: 31,710

Re: Oral puzzles

Hi,

#4865. If 760 is divided into four parts which are in the ratio 3 : 4 : 5 : 7. Find the difference between the largest and the smallest part.


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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#6725 2020-11-19 15:11:57

Denominator
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Registered: 2009-11-23
Posts: 184

Re: Oral puzzles

Hello,

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