Wednesday Challenge

[gillywibble]

A factor recycles paper plates for use in its canteen.

Nine used plates are needed to make each new plate. From 665 used plates, how many new plates can possibly be made in total?

 

[shredgod]

74 plates can be made initially, however these plates can then be recycled again to make another 9 plates, which can then be used to make 1 more

So in total, 84 plates?

Edit: Assuming 73.8 is rounded up to 74

 

[Judgeneo]

665/9 = 73.8...

so 73 new + 8 unrecycled

73/9 = 8.11... so 8 more new and 1 unrecycled

now have 9 unrecycled so 1 more new

now have 9 plates, so add another 1

73+8+1+1 = 83 plates

 

[Kyle009]

Am I missing something or is it not just 665/9?

edit. Yes I am!

 

[Russinating]

665/9 = 73, 8 plates remaining
73+8/9 = 9
9/9 = 1

So 83 plates, left with 1 at the end.

 

[misterPK]

83 here too, after realising my schoolboy mistake....

PK!

 

[Antar Bolaeisk]

83 plates

This

 

[Sparky__H]

Might need to look at their paper pulp recovery system as that's a shocking percentage.

 

[Narziss]

 

[Casdawer]

Pi

 

[eatcustard]

665/9 = 73.8...

so 73 new + 8 unrecycled

73/9 = 8.11... so 8 more new and 1 unrecycled

now have 9 unrecycled so 1 more new

now have 9 plates, so add another 1

73+8+1+1 = 83 plates

this

 

[Cosimo]

Pi

It always is:

3.141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609...

 

[The Dread Pirate]

Why don't they buy some proper plates and then save the energy required to recycle the paper plates!

 

[ojrules]

wuuut.. still don't get why its 83 not 73...

 

[Cosimo]

Why don't they buy some proper plates and then save the energy required to recycle the paper plates!

They don't want to.

 

[Messiah Khan]

wuuut.. still don't get why its 83 not 73...

Because the plates made from the first round of recycling can be recycled again making more plates.. and so on.

 

[geekyEd]

wuuut.. still don't get why its 83 not 73...

Well one you have recycled and used the first batch you can apply the process again.

Have a dunce hat /D\

oo 2.5k Posts

 

[alx]

665/9 = 73, 8 plates remaining
73+8/9 = 9
9/9 = 1

So 83 plates, left with 1 at the end.

This

 

[ojrules]

^^ i had read that but still didnt understand it... ah numberz what is with yams?..

 

[ScarySquirrel]

4 million.