October 3, 2002 at 4:11 pm
A little Brain Teaser for you to all have a go at… Good Luck. }>
A wet sponge weighs 1kg and is 99% water by weight. Squeeze it so it is only 98% water by weight. How much does it weigh now???
Answer coming later.
By: shorthome - 3rd October 2002 at 21:15
RE: A toughy…
sorry do not get it where you got the 500 grams.
By: A330Crazy - 3rd October 2002 at 19:52
RE: A toughy…
Right… answer time! 🙂
Originally, 1% of the total weight is sponge (10g of the total 1000g).
After squeezing, 2% of the total weight is sponge. The sponge its self still only weighs 10g, so the weight of the wet sponge must be 500g. (since 2% of 500g = 10g)
Hope you understood that… if not tell me. 🙂
By: T5 - 3rd October 2002 at 19:08
RE: A toughy…
[updated:LAST EDITED ON 03-10-02 AT 07:09 PM (GMT)]970.2 says me calculator – but as someone said, it’s obviously going to be something different!
By: Hand87_5 - 3rd October 2002 at 17:49
RE: A toughy…
I agree shorty even if I didn’t the final calculation
By: shorthome - 3rd October 2002 at 17:46
RE: A toughy…
1 kg = 1000 grams
1% is own weight = 10 grams.
100% water = 990 grams
990 gr. * 0,98 = 970,2 gr.
970,2 + 10 gr. =
980,2 gr When I’m not correct.
But it will certainly be such an stuppid joke 🙁
By: Hand87_5 - 3rd October 2002 at 17:36
RE: A toughy…
10grammes + (0.98*0.99)*1kg