Latest book Aptitude Question SOLUTION: i really dont get properties what kind of properties are these? 10)7(8-3)=7(5) 13)(6+9x=15x 14)(7-4)(6)=3(6) 15)xyz=1xyz 16)8+5=(4+4)+5 17)if 6+3=9 and 9=3(3), then 6+3