B and C are two rectangular containers. The base area of B is 100 cm
2 while that of C is 40 cm
2 . At first, B contained water to a height of 60 cm and C was empty, as shown.
- What was the volume of the water in B at first?
- Vincent then poured some water from B to C. After that, the height of the water level in B was twice that in C. What was the new height of the water level in B?
(a)
Volume of water in B
= 100 x 60
= 6000 cm
3 (b)
Total base areas
= 100 + 100 + 40
= 240 cm
2 Height of water if the total base area is 240 cm
2 = 6000 ÷ 240
= 25 cm
New height of the water level in B
= 25 x 2
= 50 cm
Answer(s): (a) 6000 cm
3; (b) 50 cm