Question

you have been given four 4's and you are required to generate numbers between 1to 20 using these 4 four. you can use operations +,-,*,/. challenge is that you must use all the fours along with any Operation to generate a number
eg-
(4+4)/4+4=6

Answer 1

Hi there!
hmm.. sounds like it's a Brain Teaser!

Let's try 'em :-

1 = 44 / 44

2 = 4 /√4 + 4 - 4

3 = 4! / 4!! × 4 / 4

4 = 4!! / (4 + 4) × 4

5 = 4 + (√4 + √4) / 4

6 = 4! / 4 + 4 - 4

7 = 4! / 4 + 4 / 4

8 = (4 + 4) × 4 / 4

9 = (4! / 4 /√4)⁴

10 = 44 / 4.4

11 = 4 / .4 + 4 / 4

12 = 4/ .4 + 4 /√4

13 = 4!! + 4 + 4 / 4

14 = 4!! + 4 + 4 /√4

15 = (√√√4)⁴! - 4) / 4

16 = 4⁴! - 4 - 4

17 = (√√√4)⁴! + 4) / 4

18 = 4·4 + 4 - √4

19 = 4!! / .4 - 4 / 4

20 =  (4 + 4 / 4) × .4

hope it helps! :)

Answer 2

Generated numbers between 1 to 20 using four 4's and operations.

To find :

Using four 4's and operators ( +, -, *, / ) generate numbers between 1 to 20.

Given :

Four 4's : 4 , 4 , 4 , 4

Operators  : ( +, -, *, /, . )

" + " ⇒ is used for adding the numbers.

" - " ⇒ is used for subtracting the numbers.

" * " ⇒ is used for multipying the nubmers.

" / " or " ÷ " ⇒ is used for divide the numbers.

" . " ⇒ represents decimal value ( For example ".4" represents "0.4")  

By using operators, generating numbers between 1 to 20 :

         44 ÷ 44 = 1

(4÷4) + (4÷ 4) = 2

  ( 4+4+4) ÷ 4 = 3

    4*(4-4) + 4  = 4

   (4*4+4) ÷ 4 = 5

       4*.4+4.4 = 6

     44 ÷ (4-4) = 7

       4+4.4-.4 = 8

      4÷4+4+4 = 9

        44÷4.4 = 10

     4÷.4+4÷4 = 11

      (44+4)÷4 = 12

      4! - 44÷4 = 13

     4*(4-.4)-.4 = 14

         44÷4+4 = 15

        .4*(44-4) = 16

        4÷4+4*4 = 17

        44*.4+.4 = 18

       4! -4-4÷4 = 19

     4*(4÷4+4) = 20

Therefore, using four 4's and operators numbers between 1 to 20 are generated.

To learn more...

brainly.in/question/3752492