Question

Which numbers are to be either multiplied or divided by 11 so that the product or quotient respectively are perfect squares ?

• A. 2816
• B. 704
• C. 6561
• D. 34848

Answer 1

Answer: (A), (B)

The correct options are
A 2816
B 704

(A, B) $2816=2^2\times 2^2\times 2^2\times 2^2\times 11$
$704=2^2\times 2^2\times 2^2\times 11$