What is the least number to be added to 7700 to make it a perfect square? · ABC26GN1427

Subject: General Aptitude · Chapter: Square Roots and Cube Roots

What is the least number to be added to 7700 to make it a perfect square?

(a)77

(b)98

(c)131

(d)221

(e)None of these (Bank Recruitment, 2008)

Answer

Answer (as printed): E

Explanation

$\therefore \quad$ Number to be added $=(88)^{2}-7700=7744-7700=44$.

Explanation as extracted from the printed page; notation may be imperfect.

Study loop for Square Roots and Cube Roots