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#6701 2020-10-15 00:08:07
- Jai Ganesh
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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 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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#6702 2020-10-17 00:07:08
- Jai Ganesh
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Re: Oral puzzles
Hi,
#4846. If x:y = 3:2, and y:z = 6:5, then find x:y:z.
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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#6703 2020-10-19 00:09:51
- Jai Ganesh
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Re: Oral puzzles
Hi,
#4847. If a:b = 1:2 and b:c = 3:4, find a:c.
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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#6704 2020-10-21 00:04:19
- Jai Ganesh
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- Posts: 48,423
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 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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#6705 2020-10-23 00:06:37
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
4849. X:Y:Z = 2:3:4, find
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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#6706 2020-10-25 00:03:58
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4850. If A = 2B = 3C, find A:B:C.
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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#6707 2020-10-27 00:05:27
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4851. Find A : B : C if
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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#6708 2020-10-29 00:01:47
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4852. If A = 2B and 3B = 4C, find A : C.
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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#6709 2020-10-31 00:07:56
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4853. If 2 : y = 4 : 3, find 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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#6710 2020-11-02 00:03:10
- Jai Ganesh
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Re: Oral puzzles
Hi,
#4854. If x:y = 3:4, then find (7x - 4y):(3x + 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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#6711 2020-11-02 01:51:09
- Denominator
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- Posts: 220
Re: Oral puzzles
Hello,
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#6712 2020-11-02 03:28:18
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
Neat work!
#4855. If 10% of x = 30% of y, find x : 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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#6713 2020-11-03 00:13:55
- Denominator
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- Posts: 220
Re: Oral puzzles
Hello,
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#6714 2020-11-03 00:23:08
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
The solution #4855 is correct. Good work!
#4856. If a:b = 3:1, find
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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#6715 2020-11-04 00:24:44
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4857. If
find a : 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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#6716 2020-11-06 00:07:11
- Jai Ganesh
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- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi,
#4858. If a : 4 = b : 3, find (a + 4) : (b + 3).
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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#6717 2020-11-08 00:04:41
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4859. If 2a = 3b = 6c, then find (a + b + c)/a.
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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#6718 2020-11-10 00:03:01
- Jai Ganesh
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- Posts: 48,423
Re: Oral puzzles
Hi,
#4860. If a : b = c : d = e : f = 1 : 2, then find (3a + 5c + 7e) : (3b + 5d + 7f).
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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#6719 2020-11-10 17:18:32
- Denominator
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- Posts: 220
Re: Oral puzzles
Hello,
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#6720 2020-11-10 19:37:23
- Jai Ganesh
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- Registered: 2005-06-28
- Posts: 48,423
Re: Oral puzzles
Hi,
Neat work!
#4861. If x : y = 3 : 4 and y : z = 3 : 4, find the value of
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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#6721 2020-11-12 00:07:36
- Jai Ganesh
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- Posts: 48,423
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 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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#6722 2020-11-14 00:04:56
- Jai Ganesh
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- Posts: 48,423
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 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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#6723 2020-11-16 00:03:32
- Jai Ganesh
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- Registered: 2005-06-28
- Posts: 48,423
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 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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#6724 2020-11-18 00:15:52
- Jai Ganesh
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- Posts: 48,423
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 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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#6725 2020-11-19 15:11:57
- Denominator
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- Posts: 220
Re: Oral puzzles
Hello,
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