This is modulo arithmetic, also called clock arithmetic (even when the modulus is not 12) as the numbers start back at zero when the modulus is reached - the numbers go round and round in a cycle like the numbers (or times) on a clock.
When doing modulo arithmetic, only the reminder when the number is divided by the modulus is considered. For example 15 modulo 6 is 3 as 15 ÷ 6 = (2←ignored) remainder 3; 15 modulo 3 is 0 as 15 ÷ 3 = (5←ignored) remainder 0.
This is an important area of maths.
One application is finding the highest common factor of two numbers (which is Euclid's Algorithm or method):
eg find the hcf of 84 and 30:
84 MOD 30 = 24
30 MOD 24 = 6
24 MOD 6 = 0
→ hcf(84, 30) = 6.
Another use is in the RSA public key encryption.
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In the case of the question, the modulus is 12:
(11 + 2) MOD 12 = 13 MOD 12 = 1
(9 + 5) MOD 12 = 14 MOD 12 = 2
This riddle uses time. Take a twelve hour clock.
11 o'clock + 2 more hours = 1 o'clock
9 o'clock + 5 more hours = 3 o'clock
It does not matter if the times are am or pm, because it is a 12 hour clock.
11 o'clock and 3 more hours = 2 o'clock!
20/3 or 6 and 2/3
On a
14
If you overlay a 2 with a backward 2, it looks like a fish swimming upward (moreso when turned sideways).As shown on the TV series called The Fairly Oddparents, a character wishes that he was always right. The wish is granted and when the teacher asks him what 2 + 2 is, he said "Fish" and everyone then believed that "fish" was the correct answer.There is one more possible way of looking at this. here's how it goes: 2+2=4, and there are four letters in the word "fish". Another example: 3+2= z e b r a. there are five letters in zebra.
The errors are grammatical. The email came to me as follows: "Find the error, its impossible 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20" Error 1: "Find the error" is a sentence and should end with a period. Error 2: "its" is possessive but should be a contraction of "it is:" therefore, it should have an apostrophe. Error 3: "Since "it's impossible" is a sentence, "it's" should have the i capitalized. Error 4: "Since "It's impossible" is a sentence, it should have punctuation at its end. Suggestions are a period or colon. At least two more errors as 1) It's not impossible. 2) Since there are at least 3 and if including the two you included then 5, error is not singular but plural and should be "errors." (The original riddle from Facebook is explained in the related question below.) ***The "11" is BACKWARDS! Found the error. Boom!***
Chicago.
' ODD ' numbers. '6' In a Day, there are 6 ODD hours.- take day hrs in 12hr format,not in a 24 hr format. (1),2,(3),4,(5),6,(7),8,(9),10,(11),12 - 1,3,5,7,9,11 are 6 odd numbers. '4' In a Week, ther are 4 ODD days. - you know that there are 7 days in a week. (1),2,(3),4,(5),6,(7) - 1,3,5,7 are 4 odd numbers. '2' In a Month, there are 2 ODD weeks. - you know that there are 4 weeks in a month. (1),2,(3),4 - 1 & 3 are 2 odd numbers. '1' In a Year (12 months), there is 1 ODD - you konw that 12 months are in year.take number 12 of months. (1),2 - 1 is 1 odd number
It means: 1) A small to medium sized automobile that can carry no more than nine (9) passengers. 2) a horse drawn carriage that carries two or more passengers 3) a rail car or street car
There are 3 feet in one yard. Therefore, 11 yards 2 feet is equal to (11 x 3) + 2 = 35 feet.
-3-2-5-1 is equal to -11
11/3
4
It is: (2*3)+5 = 11
2, 3, 5, 7 and 11.
let numbers be: 1, 2 , 3, and 42 X 3 + 4 + 1 = 11
Your question, "Is there any way 2 plus 2 can equal anything but 4?" My answeris YES. If you were to use base 3 math, 2 plus 2 would then equal "11" (base 3) 2 plus 2 = 11 (base 3)
There are 3 feet in one yard. Therefore, 11 feet is equal to 11/3 = 3 remainder 2 or 3 yards 2 feet.
10 plus 20-2 - 11 plus 3 is equal to 20.
((3+3)/3)+(3x3) 6/3 + 9 2 + 9 11
11 and 2/5 minus 2 and 3/5 = 8 and 4/5 or 8.8