Question

In each of the following question, select the related number from the given alternatives.
$2112$ $:$ $81181221$ $:$ $?$

• A. $1881$
• B. $8181$
• C. $1188$
• D. $1118$

Answer 1

The correct option is A $1881$

Given $2112:81181221:?$ in 81181221 we see 1221 is just taking 11 of 2112 out and 22 inside we get 1221 , so in similar fashion if $?=1881$ if we take 88 out and 11 in we get 8118 .

combining 8118 and 1221 we get middle element 81181221

Hence option A is correct answer