Question

5. A three-digit number is selected such that it contains no zeros. Now this three-digit number is written beside it
self to form the six-digit number. Its factor is
(b) 11
(c) 4
(d) None of these
(a) 5​

Answer 1

Answer:

11 x 11=121

it is a 3 digit number

Answer 2

Answer:

Answer is 11.

11² is 121.

so 121 121 if taken as three digit number we do get the answer 11.