double counting
huynh anh phuong
12/12/2017 at 10:59
The title is missing some information: Each person has a pancake.
So there are: \(4.3.9=108\left(people\right)\) in the party.

FA Liên Quân Garena 30/12/2017 at 21:44
The title is missing some information: Each person has a pancake.
So there are: 4.3.9=108(people)
in the party.

nguyen tuan anh 06/04/2018 at 13:48
the title is missing some information : Each person has a pancake
so there are : 4.3.9 = 108 (people) in the party
Đỗ Phi Phi
26/07/2017 at 21:39
2 x 2 + 1 = 5
3 x 2 + 1 = 7
5 x 2 + 1 = 11
7 x 2 + 1 = 15
11 x 2 + 1 = 23
13 x 2 + 1 = 27
So,there are 4 jillyprimes which are less than 15 : 2 ; 3 ; 5 ; 11
Selected by MathYouLike 
FA KAKALOTS 28/01/2018 at 22:04
2 x 2 + 1 = 5
3 x 2 + 1 = 7
5 x 2 + 1 = 11
7 x 2 + 1 = 15
11 x 2 + 1 = 23
13 x 2 + 1 = 27
So,there are 4 jillyprimes which are less than 15 : 2 ; 3 ; 5 ; 11
Hà Đức Thọ moderators
14/06/2017 at 15:35falcon handsome moderators
09/03/2017 at 12:34
Ace Legona 09/03/2017 at 18:03
What did you try ?

Pham Hoang Nam 18/04/2017 at 21:33
What did you try ?

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