If x * y=x²+y²-x y, then the value of 9 * 11 is · ABC26GN1177

Subject: General Aptitude · Chapter: Simplification

If $x{ }^{*} y=x^{2}+y^{2}-x y$, then the value of 9 * 11 is

(a)93

(b)103

(c)113

(d)121

Answer

Answer (as printed): B

Explanation

$9 * 11=9^{2}+(11)^{2}-9 \times 11=81+121-99=103$.

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

Study loop for Simplification