# For all you smart people

Knight Square
Posers and Puzzles 12 Aug '06 22:29
1. 12 Aug '06 22:291 edit
I have some questions to ask you guys.

There is a balloon with a radius of 45cm.
There is a pump that fills at a rate of 27.3L/s.
How long will it take to fill up the balloon (answer in min plz)?

For some reason I got around 14 min where did i go wrong?
2. 12 Aug '06 22:35
Homework?
3. XanthosNZ
Cancerous Bus Crash
12 Aug '06 22:491 edit
41.9 seconds
4. 12 Aug '06 22:51
Yep
5. 12 Aug '06 22:52
lets try R 45m?
6. AThousandYoung
A Hispanic Invention
12 Aug '06 23:141 edit
Originally posted by Knight Square
I have some questions to ask you guys.

There is a balloon with a radius of 45cm.
There is a pump that fills at a rate of 27.3L/s.
How long will it take to fill up the balloon (answer in min plz)?

For some reason I got around 14 min where did i go wrong?
Volume of a sphere: (4/3)pi*r^3

You get cm^3 = mL.

Divide the mL by 1000 (or multiply the pump speed by 1000) and the units will match. Now divide the volume by the pump's rate.

You get seconds. Now divide by 60 to get minutes.
7. 12 Aug '06 23:15
I dont know if the figure are correct
8. 12 Aug '06 23:28
Originally posted by Knight Square
Yep
I think that when asking for help with homework you should show some of your own work and point out where you are having difficulty. Being handed the answer on a plate isn't going to help you pass your exams.
9. XanthosNZ
Cancerous Bus Crash
12 Aug '06 23:29
Originally posted by ThudanBlunder
I think that when asking for help with homework you should show some of your own work and point out where you are having difficulty. Being handed the answer on a plate isn't going to help you pass your exams.
And he still doesn't know where he went wrong.
10. 12 Aug '06 23:39
Okay here are the real figures.
R 45 cm
pump 27.3/min

4/3*pi*.45^3=0.381703507 (figure in m^3)
coversation to L (from m^3)= 1000*0.381703507
= 381.7035074
rate= 381.7035074/27.3
= 13.98181346min
Answer is needed in min anyway.

Am I correct or wrong.
11. XanthosNZ
Cancerous Bus Crash
12 Aug '06 23:48
You use an incorrect formula and you can't decide whether your rate is per second or per minute.

Maybe you should leave the number stuff to other people. You are clearly not cutout to do math. Or physics.
12. 13 Aug '06 00:101 edit
Noooooooooo. I gave you the wrong info.
its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What form are you XanthousNZ?
13. XanthosNZ
Cancerous Bus Crash
13 Aug '06 00:31
Originally posted by Knight Square
Noooooooooo. I gave you the wrong info.
its in min not secs OKAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

What form are you XanthousNZ?
Forms are obsolete.
14. 13 Aug '06 00:331 edit
Okay then they are then.
Play any other sports? Rugby, Cricket?
15. 13 Aug '06 00:54
Originally posted by Knight Square
Okay then they are then.
Play any other sports? Rugby, Cricket?
play any good sports? football? basketball?