Question:

What base would you choose here?

110
105
100
90

Answer: c

Question:

How much less or more the numbers are from the base?

4 less and 1 less respectively
6 more and 9 more respectively
6 less and 9 less respectively

Answer: b

Question:

What is the number you got after multiplying the numbers on right side?

54
4
0

Answer: a

Question:

What is the number you get after doing cross-addition? I hope you are not thinking of doing cross-subtraction.

115
105
100

Answer: a

Question:

So, 106 * 109 =

Answer: 11554