HOTS Mathematics Primary 5 Volume

Two identical rectangular tanks, each with internal dimensions 30 cm by 20 cm by 40 cm, are placed side by side. Tank A is filled with water to a depth of 32 cm. Tank B is empty. Water is poured from Tank A into Tank B until both tanks have water at the SAME depth. Find the new depth of water in each tank.

A 8 cm
B 20 cm
C 32 cm
D 16 cm
Show Worked Solution

Worked Solution

Step 1: Both tanks have identical cross-section (30 × 20 = 600 cm²). Step 2: Total water volume = 600 × 32 = 19 200 cm³. Step 3: After splitting equally, each tank has 19 200 ÷ 2 = 9 600 cm³. Step 4: Depth in each = 9 600 ÷ 600 = 16 cm. Answer: 16 cm

Correct answer: 16 cm

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