A and B are two rectangular tanks. The base area of A is 70 cm
2 while that of B is 40 cm
2 . At first, A contained water to a height of 36 cm and B was empty, as shown.
- What was the volume of the water in A at first?
- Andy then poured some water from A to B. After that, the height of the water level in A was twice that in B. What was the new height of the water level in A?
(a)
Volume of water in A
= 70 x 36
= 2520 cm
3 (b)
Total base areas
= 70 + 70 + 40
= 180 cm
2 Height of water if the total base area is 180 cm
2 = 2520 ÷ 180
= 14 cm
New height of the water level in A
= 14 x 2
= 28 cm
Answer(s): (a) 2520 cm
3; (b) 28 cm