HOTS Mathematics Primary 5 Volume

An ice supplier at Tekka Market has 3 identical ice cubes, each with a side length of 12 cm. All 3 ice cubes are melted together and the water is poured into a rectangular tray measuring 32 cm long and 27 cm wide. The water fills the tray completely to the brim. What is the height of the tray?

A 6 cm
B 2 cm
C 9 cm
D 18 cm
Show Worked Solution

Worked Solution

Step 1: Find the volume of one ice cube: 12² = 12 × 12 = 144 Volume = 144 × 12 = 1728 cm³ Step 2: Find the total volume of 3 melted ice cubes: Total volume = 1728 × 3 = 5184 cm³ Step 3: Find the base area of the rectangular tray: Base area = 32 × 27 = 864 cm² Step 4: Find the height of the tray: Height = 5184 ÷ 864 = 6 cm

Correct answer: 6 cm

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