Question

You have three bricks measuring 18*9*6 cm.how many different heights can you build up with them?

Answer 1

totel 9 different type of height we can build
18+18+18
18+18+9
18+18+6
18+6+6
18+9+6
18+9+9
9+9+9
9+6+6
6+6+6

Answer 2

18↑18↑18
9↑9↑9
6↑6↑6
18↑18↑9
18↑18↑6
18↑6↑18
18↑9↑18
9↑18↑6
9→9→9
18→18→18
6→6→6
6→9→18
6→18↑18
6→9↑18
9→9↑18
18→18↑18
6→6↑6
9→9↑9