C and D are two rectangular tanks. The base area of C is 78 cm
2 while that of D is 44 cm
2 . At first, C contained water to a height of 44 cm and D was empty, as shown.
- What was the volume of the water in C at first?
- Will then poured some water from C to D. After that, the height of the water level in C was twice that in D. What was the new height of the water level in C?
(a)
Volume of water in C
= 78 x 44
= 3432 cm
3 (b)
Total base areas
= 78 + 78 + 44
= 200 cm
2 Height of water if the total base area is 200 cm
2 = 3432 ÷ 200
= 17.16 cm
New height of the water level in C
= 17.16 x 2
= 34.32 cm
Answer(s): (a) 3432 cm
3; (b) 34.32 cm