Question

The sum of four two digits number is 256. None of the four number has zero in it. All the eight digits are different which digit has not been used in the four numbers?

Answer 1

Answer:

5 is not used.

Step-by-step explanation:

the two digit numbers are;

21+64+73+98=256

hence digit 5 is not used.

Answer 2

Answer:

The digit 5 is not used.

Step-by-step explanation:

The sum of 256 can be find by adding numbers:

68

71

23

94

⇒ 23 + 71 + 68 + 94 = 256

Here, number 5 has not been used.