Question 1036906
36^3 = 46656 is the volume of the cube
1/2 filled with water:
1/2*46656 = 23328
add a block 5184:
23328+5184 = 28512
What is 28512 of 46656?
28512/46656 = 0.6111...
When you add the metal block the cube will be 61.11% full and:
36*.6111 = 22 cm high, the cube will be filled to the 22 cm mark