Primary 6 · Volume · Question type 7.5
The water volume stays the same, so divide it by the new base area to find the water level.
Try the question yourself, or watch the lesson first.
Primary 6, on the MOE Primary Mathematics syllabus.
The lesson · 2 minutes 53 seconds
Watch: water 12 cm deep poured into a wider tank
Another worked example
Tank A measures 40 cm by 20 cm and holds water 3 cm deep. All the water is poured into the empty Tank B, whose base area is one quarter of Tank A's. Then all the water in Tank B is poured into the empty Tank C, whose base area is half of Tank B's. Find the height of the water level in Tank C.
The working · Five lines
Written out in full, the way it should appear on paper.
The answer is 24 cm.
Practise · Modelled on top school exam questions
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Try it yourself
Find the remaining volume, then divide by the base area.
A rectangular tank measures 45 cm by 20 cm. The water in it is 24 cm deep. 5.4 ℓ of water is drawn off. Find the depth of the water left in the tank.
Ans: 18 cm
The practice plan adds more questions and saved progress.
Next, find a missing measurement after water is transferred. Pouring Water Between Two Containers →