## Answers

**Let x be the fall in water level.** It is given that** Width of container is 9cm , length of container is 12cm and edge of cube(side) is 6cm**

**So volume of cube= side^3 = 6 x 6 x 6 = 216 cm^3**

**Implies that Volume of water= 216 cm^3**

**implies 12*9* x = 216**

**therefore x= 216/ 12*9 = 2**

**Hence, fall in water level is equal to 2cm**

*Length of the edge of cube 6cm*

*Volume of cube= 6*6*6= 216 cm³*

*Area of base of container = 12*9= 108 cm²*

*Let the drop of water level be x*

*Then we have 108*x= 216*

*⇒ x= 2*

*Drop in water level is 2cm*