Question

12 = 1 , 112 = 121 , 1112 = 12,321 , 11112 = 1,234,321. Based on the pattern shown, what is the sum of the digits when 11,1112 is calculated?

A) 5
B) 28
C) 49
D) 84

Answer 1

The sum of the digits when 11,1112 is calculated is 12.

Step-by-step explanation:

Based on the pattern shown:

12 = 1

112 = 121

1112 = 12,321

11112 = 1,234,321

We can observe that the number of digits in the pattern increases by 2 each time. So, when 11,1112 is calculated, it will have 2 more digits than the previous number.

Adding 2 digits to the number 1,234,321 gives us 12 digits. Therefore, the sum of the digits when 11,1112 is calculated is 12.