Question

$($1 1 1 1 1 1 1 1${)}^2$ equals to:

• A. 123456787654321
• B. 123454321
• C. 1234567654321
• D. None of these

Answer 1

The correct option is A

123456787654321

$\to$Since, it contains 8 number of 1s, the number will first increase from 1 to 8 and then decrease to 1.

∴ $($1 1 1 1 1 1 1 1${)}^2$ = 123456787654321