Advent Calendar 4. Game

[Colin Morrigen]

80 secs
The sheet can be divided into 5 strips; thus it takes 4 cuts to separate the strips (not the other edges, of course)

 

[Matori]

It takes a bit more than 80 seconds to finish.
Explanation: Elf needs to cut 4 times to get 5 strips. Each one takes 20 sec, but he needs to return to start the next one (that is why more than 80 : ) )

 

[Beefmeister]

well...i hope i'm not that stupid but the answer should be a minute and 40 seconds

not sure what explanation to provide though, you just cut 5 strips from a square...unless there's errors, but the question doesn't specify that
however you put it it's the same answer though...attached a pic

 

[Fargo Winch]

You can cut 5 strips of 2cm x10cm in total from the wrapping paper sheet of 10cm x 10cm, it will hence take 4 x 20sec to have 5 strips since the last strip doesn't need to be cut. The answer is hence 80 seconds!

 

[KamosRZ]

It will take him 4x20 seconds to cut the entire paper into strips so 80 seconds. The reason is takes him 4 tries is that a strip of 10cm cut into 2cm is 5 mini-strips but there is no need to cut the last one so only 4 cuts are needed.

 

[rndm]

80 seconds https://prnt.sc/21pf1mb

 

[Lucky Dan]

In order to cut 10cmx10 cm into 2 cm wide straps elf must make 4 cuts (at 2cm,4cm,6cm,8cm).
If one cut takes 20 seconds then total time is 4x20seconds resulting into 80 seconds (1minute and 20 seconds)

There are 5 strips at the end of cutting.
If it takes 20 seconds to cut A STRIP (one strip and not a cut) then calculation is following.
5x20 seconds resulting into 100 seconds (1 minute and 40 seconds).

Difference with time calculation from above is that with last cut elf gets 2 strips with one cut.

 

[Razy]

10cm x 10cm sheet, 2cm x 10cm strips therefore we can obtain a total of 5 strips with just 4 cuts
4 cuts = 80 seconds

 

[christnik]

1 minute and 20 seconds since the last strip falls of after the 4th cut

 

[Sequoyah]

a 10cmx10cm sheet provides 5 strips 2 cm wide, needing 4 cuts. Each cut last 20s therefore to cut a sheet completely into strips it takes the poor littele elf 80s

 

[Sue-Jen Amarillo]

Each sheet can be cut into 5 strips.
5x20 secs= 100 seconds for an elf to cut a sheet into strips.

wisecrack: if the elf were riding a jaguar, she would go 371% faster

 

[Apanatschka]

Elf needs to make 4 cuts, 4 times 20s is 1min 20s.

 

[JWillow]

Starting with a 10 cm(w) x 10 cm(L) sheet, you can cut 5 stripes of 2 cm(w) x 10 cm(L) out of the sheet. 5 strips times 20 seconds means 100 seconds total for one sheet. So answer is 1 minute and 20 seconds to cut one sheet into strips.

 

[Hypnosis]

80 sec, because to get 5 pieces one should cut 4 times. (10:2=5 pieces; 4 cuts to get them; 4*20=80s)

 

[TYHDPA]

2X2X2X2X2 2 - size, X - strip
4 strips of 20 seconds each - answer 1 minute 20 seconds or 80 seconds

 

[SUPERSKOUPIDIARIS]

Sheet is 10 x 10 = 100 square cm, and each sheet is 2 x 10 = 20 square cm, so each sheet can be devided into 100 / 20 = 5 strips.
However, on the last cut u get both the 4th and the 5th strip, so u need 4 cuts in total to cut the sheet completely.
Since each cut takes 20 seconds, 4 cuts would take 4 x 20 = 80 seconds to complete.
So the answer is 80 seconds!

 

[ImmortalMadGuys]

80 Sec
4*20 =80 Sec
cuz he can cut 4 time that sheet and get 5 strips

 

[L00nat33k]

If he has to make 2x10cm strips from 10x10cm that means he can make 5 strips, as in on lenght he needs whole length for 10cm long strips, and on other side he can make 10/2=5 strips. If he needs 20 seconds for every strip it takes him 100 second to cut sheet.

 

[Alduin]

2x10 = 20 cm2 of strip of wrapping, 10x10 = 100cm2 total sheet. 100cm2/20cm2 = 5 strip maximum from single sheet. 20x5 = 100 seconds =>1 minute 40 seconds to elf get 5 strip from single sheet.

 

[chydovish4e]

80 sec
we have 5 strip from 10x10, but elf do 4 cuts. with the last cut, he makes 2 strips
4х20sec=80sec