Question

1 added to the greatest 4 digit number gives the smallest 4 digit number​

Answer 1

Answer:

Find the sum of smallest 4 digit number and largest four digit number

The smallest four digit number using only one digit is 1111. The largest four digit number is 9999. So sum of these two gives, 1111+9999=11110.

Answer 2

Answer:

greatest 4 digit number = 9999

smallest 4 digit number = 1000

the statement is wrong

in fact 1  added to the greatest 4 digit number gives the smallest 5 digit number​

= 9999 + 1

= 10000 = the smallest 5 digit number