Z and A are two rectangular tanks. The base area of Z is 100 cm
2 while that of A is 50 cm
2 . At first, Z contained water to a height of 40 cm and A was empty, as shown.
- What was the volume of the water in Z at first?
- Zeph then poured some water from Z to A. After that, the height of the water level in Z was twice that in A. What was the new height of the water level in Z?
(a)
Volume of water in Z
= 100 x 40
= 4000 cm
3 (b)
Total base areas
= 100 + 100 + 50
= 250 cm
2 Height of water if the total base area is 250 cm
2 = 4000 ÷ 250
= 16 cm
New height of the water level in Z
= 16 x 2
= 32 cm
Answer(s): (a) 4000 cm
3; (b) 32 cm