Latest exam Aptitude Question SOLUTION: 1. Simplify the expression: 15x^2-x-2 / 3x^2-5x-2 2. Simplify the expression: 14x^2y^6z^9 / 7x^5y^4z^11 3. Simplify the expression: 3y^2+5yz+2z^2 / 2y^2+3y