Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

Pages: 1 … 8 9 10 11 12 … 421

#226 2007-03-05 20:03:22

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Very well done, pi man! smile

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.

Offline

#227 2007-03-06 04:19:14

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: 10 second questions

I’m not very sure of my answer but that was what I got.

Offline

#228 2007-03-06 04:31:11

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: 10 second questions

You've done a lot more than you needed to there. The question just asked how many times there would be that angle, not at what time it occurred.

The answer is just

Why did the vector cross the road?
It wanted to be normal.

Offline

#229 2007-03-06 04:54:32

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: 10 second questions

Oh geez, I misread the question. mw_slap.gif

Offline

#230 2007-03-06 08:59:42

lightning
Real Member
Registered: 2007-02-26
Posts: 2,060

Re: 10 second questions

i got one i have two pounds but i lost three pounds but not my two pounds how is this possible

quite tricky so i will give you thirty secs

Last edited by lightning (2007-03-06 09:00:19)

Zappzter - New IM app! Unsure of which room to join? "ZNU" is made to help new users. c:

Offline

#231 2007-03-06 10:22:49

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: 10 second questions

You used the 2 pounds to buy a weight-loss drink.

Why did the vector cross the road?
It wanted to be normal.

Offline

#232 2007-03-06 16:34:16

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Quite right, mathsyperson!
Excellent!

159. Which is the samllest number which leaves a remainder of 1 when divided by 2, 4, 6, 8, 10, and 12?

160. Which is the number between 1 and 100 which has the greatest number of distinct prime factors?

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.

Offline

#233 2007-03-06 16:44:10

pi man
Member
Registered: 2006-07-06
Posts: 251

Re: 10 second questions

Offline

#234 2007-03-06 16:48:10

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Absolutely right, outstanding work, pi man!

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.

Offline

#235 2007-03-06 21:13:52

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: 10 second questions

Bad speling makes me [sic]

Offline

#236 2007-03-07 01:53:34

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: 10 second questions

I agree with Dross, but just to

a bit...

Why did the vector cross the road?
It wanted to be normal.

Offline

#237 2007-03-07 16:11:33

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Well done, Dross and mathsyperson!!!

161. No perfect tenth power or twentieth power of a natural number contains 6 digits. True of False?

162. How is 3628800 an important number to mathematicians?

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.

Offline

#238 2007-03-07 20:11:00

lightning
Real Member
Registered: 2007-02-26
Posts: 2,060

Re: 10 second questions


Zappzter - New IM app! Unsure of which room to join? "ZNU" is made to help new users. c:

Offline

#239 2007-03-07 20:26:02

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

lightning,
Can you give a counter-example for 161?

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.

Offline

#240 2007-03-08 20:39:42

lightning
Real Member
Registered: 2007-02-26
Posts: 2,060

Re: 10 second questions

sorry i geused

Zappzter - New IM app! Unsure of which room to join? "ZNU" is made to help new users. c:

Offline

#241 2007-03-08 20:43:28

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Guessing isn't wrong, but guessing wrongly is!!!
roflol

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.

Offline

#242 2007-03-08 23:33:34

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

Re: 10 second questions

Why did the vector cross the road?
It wanted to be normal.

Offline

#243 2007-03-11 20:27:25

lightning
Real Member
Registered: 2007-02-26
Posts: 2,060

Re: 10 second questions

ganesh wrote:

Guessing isn't wrong, but guessing wrongly is!!!
roflol

told you your funny

Zappzter - New IM app! Unsure of which room to join? "ZNU" is made to help new users. c:

Offline

#244 2007-06-02 02:56:02

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Well done, mathsyperson!

163. A rectangular block of ice measures 40 cm by 25 cm by 16 cm. Calculate its mass in kilograms if 1 cubic centimetre weighs 0.9 grams.

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.

Offline

#245 2007-06-02 03:25:55

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

164. What is the value of x if x% of 24 is 64?

165. 3/8 as percent is_______________.

166. An ore contains 8% of Copper. How many kilograms of the ore is required to get 68 kilograms of copper?

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.

Offline

#246 2007-06-02 18:51:16

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

167. A NUMBER INCREASED BY 37.5% GIVES 33. WHAT IS THE NUMBER?

168. Which is the greatest among 33 1/3%, 4/15 and 0.35?

169. A fruit seller had some aplles. He sells 40% of the apples and has 420 apples remaining. How many apples did he have in the beginning?

170. What will be 80% of a number whose 200% is 90?

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.

Offline

#247 2007-06-03 16:18:40

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: 10 second questions

igloo myrtilles fourmis

Offline

#248 2007-06-04 02:00:33

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

Very well done, John E. Franklin!
I thought #168 was the easiest of the lot!

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.

Offline

#249 2007-06-04 02:10:07

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,385

Re: 10 second questions

171. The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

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.

Offline

#250 2007-06-04 03:35:54

Identity
Member
Registered: 2007-04-18
Posts: 934

Re: 10 second questions

ganesh wrote:

171. The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

Probably took about 15 seconds, need to work on mental arithmetic =_=

Last edited by Identity (2007-06-04 03:36:28)

Offline

Pages: 1 … 8 9 10 11 12 … 421

Board footer

Powered by FluxBB