Interesting and Humour - page 15
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
The lower part has a "hinge" with a hole for the shackle of one lock only.
The top has a "hinge" with a hole for the shackle of only one lock.
the hinge in the drawing is a double hinge, although I may not be correct in my interpretation of the word hinge, but it is a reasonable assumption for this application.
OK, I'll rephrase - how many locks can be attached to the drawer?
If the answer is TWO, then the problem is solvable. if there is ONE, then no.
OK, let me rephrase - how many locks can be attached to the drawer?
If the answer is TWO, the problem is solvable. if it is ONE, it is not.
Let's assume that the figure shows the same hinges and locks as in the problem, i.e. the shackle of the second lock will not fit into the hinge hole
If you have an answer, preferably step by step.
------------------------------
Huh. Hidden advertising. Post paid by manufacturers of padlocks )
Let's assume the hinges and locks in the picture are the same as in the problem.
If you have an answer, step by step.
The key question I asked is how many locks can be attached to the drawer?
if only ONE, then the second question - is it possible to put a lock on the lock?
If the answer is TWO, the problem is solvable.
Yep, if you're alone, some lock will have to be knocked down with a crowbar sooner or later. Better the first one. :)
So the correct answer is one transaction.
I don't get it, words are better.
[k] key to lock, [-] lock to hinge or lock to lock,[-->] operation postage
what came before, what was done, what's left after
к1* 1-*--> к1
we put 1 lock on one bar and send, the remainder of the key 1
Sender k1 * 1-*--> k1
put the 2nd lock on the 1st lock (close the 2nd lock), put the key of the 2nd lock in the parcel and put the 3rd lock on the 2nd lock and on the hinge, leaving a key 3
Recipient k2,k3 *-3-2-1-*(k2)--> k3
take off the 1st lock, get the key from the 2nd lock, put the book, close the 2nd lock on the 3rd and the hinge, send. in the remainder of the key 1,2
Sender k1 k2 *-3-2 *, *-3-2-*(book)-->
gets it, opens the 3rd lock with the 3rd key and takes the book
recipient k3 * 2-* book
the key question I asked is how many locks can be attached to a drawer?
if only ONE, then question two - can you put a lock on the lock?
Urain:
Yeah. That's if the bears let you put locks on the locks.
and he can also kick you in the arm.
credit
Good. So, Urain has written the answer. 3 transactions.
2 transactions
The receiver slips his lock through the bottom hinge, closes it, keeps the key and sends the unlocked and empty box
The sender puts the book into the open box and slips his lock on the top hinge and the Receiver's lock. Keeps his key. Sends closed box with book . Recipient opens his lock with his key