E and F are two rectangular tanks. The base area of E is 100 cm
2 while that of F is 50 cm
2 . At first, E contained water to a height of 44 cm and F was empty, as shown.
- What was the volume of the water in E at first?
- Reggie then poured some water from E to F. After that, the height of the water level in E was twice that in F. What was the new height of the water level in E?
(a)
Volume of water in E
= 100 x 44
= 4400 cm
3 (b)
Total base areas
= 100 + 100 + 50
= 250 cm
2 Height of water if the total base area is 250 cm
2 = 4400 ÷ 250
= 17.6 cm
New height of the water level in E
= 17.6 x 2
= 35.2 cm
Answer(s): (a) 4400 cm
3; (b) 35.2 cm