Question

P2. you have been given four 4's and you are required to generate numbers between 1 to 10 using these 4 fours. you can use operations + ,-,*,/ . challenge is that you must use all the fours along with any operation to generate a number.

Answer 1

Here are some methods I thought of:

1)  44/44=1
2)  4+4+4-4=8
3)  4+4/4*4=8
4)  4+4/4-4=1
5)  4/4+4+4=9

You can try many other combinations like these to generate a number between 1 and 10. I have mentioned five.
Do remember to follow the DMAS rule, which states that the division operation must be performed first, followed by multiplication, addition and finally subtraction.

Answer 2

Solution :-

By using four 4's, the numbers obtained are as follows.

1) (4*4)/(4*4)

= 16/16

= 1

2) (4 + 4)/(4 + 4)

= 8/8

= 1

3) (4 + 4 + 4 - 4)

= 12 - 4

= 8

4) (4 + 4 + 4)/4

= 12/4

= 3

5) (4 + 4 - 4)/4

= (8 - 4)/4

= 4/4

= 1

6) [(4*4) + 4]/4

= (16 + 4)/4

= 20/4

= 5

7) [(4*4) - 4]/4

= (16 - 4)/4

= 12/4

= 3

8) (4*4)/(4 + 4)

= 16/8

= 2

9) (4/4)/(4/4)

= 1/1

= 1

10) (4 + 4) + 4/4

= 8 + 1

= 9

11) (4/4)/(4 + 4)

= 1 + 8

= 9

12) (4 + 4) - 4/4

= 8 - 1

= 7

13) [(4 + 4)*4]/4

= (8*4)/4

= 32/4

= 8