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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" wink

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" wink

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

TheDude
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Re: Oral puzzles






Wrap it in bacon
 

#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" wink

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" wink

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" wink

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

TheDude
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Re: Oral puzzles


Wrap it in bacon
 

#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.
 

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