2 × 13 3/4 × 5 1/4+5 1/4 × 5 1/4+13 3/4 × 13 3/4= ? · ABC26GN1195
Subject: General Aptitude · Chapter: Simplification
$2 \times 13 \frac{3}{4} \times 5 \frac{1}{4}+5 \frac{1}{4} \times 5 \frac{1}{4}+13 \frac{3}{4} \times 13 \frac{3}{4}=$ ?
Answer
Explanation
Given exp. $=\left(13 \frac{3}{4}\right)^{2}+\left(5 \frac{1}{4}\right)^{2}+2 \times 13 \frac{3}{4} \times 5 \frac{1}{4}$ $$=\left(13 \frac{3}{4}+5 \frac{1}{4}\right)^{2}=\left(\frac{55}{4}+\frac{21}{4}\right)^{2}=\left(\frac{76}{4}\right)^{2}=(19)^{2}=361 .$$
Explanation as extracted from the printed page; notation may be imperfect.
Study loop for Simplification
· Browse this chapter in the app