Question

2. Who am I?
I am a 7-digit number.
A = F = successor of sum of digits of 12 + 9
B = G = predecessor of 8 - 5
C = E = largest single-digit number
D = smallest single-digit number​

Answer 1

Step-by-step explanation:

A=F = 12+9+1 ( 1 we are qdding to know it's successor) = 12+10 = 22

B=G = 8-5-1 ( 1 we are subtracting to know it's predecessor) = 8-6 = 2

C= E = 9

D = 1

Answer 2

A seven digit number.

ABCDEFG

Where,

A = F = successor of sum of digits of 12 + 9

B = G = predecessor of 8 - 5

C = E = largest single-digit number

D = smallest single-digit number

So,

A=F=successor of 12+9.

=successor of 21. ( as you can see that there are two digits in this number,so we need to convert it into a single digit number.And to do so add the two digits I.e.2+1=3)

Now, it is told to find the successor of the sum.

3+1=4

Hence,A=F=4

B=G=predecessor of 8 - 5

=predecessor of 3

=3‐1

=2

Hence,B=G=2

C=E=largest single-digit number

=9

Hence,C=E=9

D=smallest single-digit number

=1

Hence,D=1

Now, arrange the numbers.

A B C D E F G

4 2 9 1 9 4 2

NOTE:The smallest single digit number can also be 0 if it is seen through the classification of numbers as whole numbers,but it is 1 if we see it through the classification of numbers as natural numbers.In that case the number

4290942 is also correct.

So,your answer can varry.

Hope it helps you.