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#201 2007-11-28 02:59:04
- NullRoot
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Re: Oral puzzles
If you have two numbers, A and B, then the percentage of B that is represented by A is: (A/B)*100
If the price of 12 pencils is x, and 1x is the profit he makes from 8x, then the percentage percentage profit is:
(1x/8x)*100
By rules of multiplication, 1x/8x = (1/8)*(x/x) = (1/8)*(1) = 1/8
So, his percentage profit is: (1/8)*100 = (0.125)*100 = 12.5%
Trillian: Five to one against and falling. Four to one against and falling… Three to one, two, one. Probability factor of one to one. We have normality. I repeat, we have normality. Anything you still can’t cope with is therefore your own problem.
#202 2007-12-07 01:27:15
- ganesh
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Re: Oral puzzles
#426.The factorial of a number is always less than
. True or false?#427. If the sum of internal angles of a polygon is 720° , what is the name of the polygon?
Character is who you are when no one is looking.
#203 2007-12-07 22:28:08
- JohnnyReinB
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Re: Oral puzzles
"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"
Nisi Quam Primum, Nequequam
#204 2007-12-08 01:24:34
- ganesh
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Re: Oral puzzles
Correct, JohnnyReinB,
Well done!
#428. If x+y=7 and xy=12, what is the value of x² +y² ?
#429. If x^(1/3)+y^(1/3)+z^(1/3)=0, then x+y+z=3xyz, True or False?
Character is who you are when no one is looking.
#205 2007-12-08 13:54:38
- JohnnyReinB
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Re: Oral puzzles
Have we Plutoins no hope?
Last edited by JohnnyReinB (2007-12-08 14:03:31)
"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"
Nisi Quam Primum, Nequequam
#206 2007-12-08 16:09:35
- pi man
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Re: Oral puzzles
Quote from JohnnyReinB: "What happens if you raise a number to a fraction?"
x ^ (1/2) is the square root of X
x ^ (1/3) is the cube root of X
.
.
.
#207 2007-12-10 17:27:54
- ganesh
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Re: Oral puzzles
#430. What is the side total of a magic square containing numbers from 1 to 49?
Character is who you are when no one is looking.
#208 2007-12-11 00:54:19
#209 2007-12-11 16:09:37
- ganesh
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Re: Oral puzzles
Well done, TheDude,
All answers correct!!!
Character is who you are when no one is looking.
#210 2007-12-13 19:11:09
- ganesh
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Re: Oral puzzles
#431. If x=y=2z and xyz=256 then what is the value of x?
#432. Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank.
Character is who you are when no one is looking.
#211 2007-12-21 21:25:52
- JohnnyReinB
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Re: Oral puzzles
"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"
Nisi Quam Primum, Nequequam
#212 2007-12-22 16:45:44
- ganesh
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Re: Oral puzzles
Excellent, JohnnyReinB!!! All correct!!!
#433. Solve for x.
Character is who you are when no one is looking.
#213 2007-12-23 03:54:44
- NullRoot
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Re: Oral puzzles
Trillian: Five to one against and falling. Four to one against and falling… Three to one, two, one. Probability factor of one to one. We have normality. I repeat, we have normality. Anything you still can’t cope with is therefore your own problem.
#214 2007-12-23 16:11:02
- ganesh
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Re: Oral puzzles
Solution to #433.
Well done, NullRoot! You are correct!!!
#434. What is (a-x)(b-x)(c-x).......(z-x)?
Character is who you are when no one is looking.
#215 2007-12-24 16:46:27
- ganesh
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Re: Oral puzzles
#435. Solve
Character is who you are when no one is looking.
#216 2007-12-25 20:02:04
- JohnnyReinB
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Re: Oral puzzles
what do you mean by solving it?
"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"
Nisi Quam Primum, Nequequam
#217 2007-12-25 20:14:34
- ganesh
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Re: Oral puzzles
Solve for x, that is get x in terms of a and b.
Character is who you are when no one is looking.
#218 2007-12-25 20:17:11
- JohnnyReinB
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Re: Oral puzzles
ok.
"There is not a difference between an in-law and an outlaw, except maybe that an outlaw is wanted"
Nisi Quam Primum, Nequequam
#219 2007-12-25 20:23:32
- ganesh
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Re: Oral puzzles
No, you are not correct!
Character is who you are when no one is looking.
#220 2007-12-27 23:50:32
#221 2007-12-27 23:59:32
- ganesh
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Re: Oral puzzles
Excellent, TheDude!!!
Keep it up!!!
Character is who you are when no one is looking.
#222 2008-01-24 01:11:32
- ganesh
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Re: Oral puzzles
436. If the operation,^ is defined by the equation x ^ y = 2x + y, what is the value of a in
2 ^ a = a ^ 3?
Character is who you are when no one is looking.
#223 2008-01-25 00:43:58
- ganesh
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Re: Oral puzzles
437. A right circular cylinder and a sphere have the same volume and same radius. What is the ratio of their curved surfaces?
Character is who you are when no one is looking.
#224 2008-01-25 01:06:00
- ganesh
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Re: Oral puzzles
438. What is the value of
(a) log 5
(b) -log 2
(c) 2 log 3
(d) 2 log 2
Character is who you are when no one is looking.
#225 2008-01-25 01:31:59
- NullRoot
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Re: Oral puzzles
Trillian: Five to one against and falling. Four to one against and falling… Three to one, two, one. Probability factor of one to one. We have normality. I repeat, we have normality. Anything you still can’t cope with is therefore your own problem.