HOTS Mathematics Primary 5 Volume of Liquid

Container A is 20 cm long, 10 cm wide, and filled with water to a height of 15 cm. Three-quarters of the water is poured into Container B, which is 25 cm long and 8 cm wide. What height does the water reach in Container B?

A 11.25 cm
B 15 cm
C 7.5 cm
D 9 cm
Show Worked Solution

Worked Solution

Step 1: Find the total volume of water in Container A. 20 × 10 × 15 = 3 000 cm³ Step 2: Find three-quarters of this volume. ¾ × 3 000 = 2 250 cm³ Step 3: Find the height in Container B. Base area of B = 25 × 8 = 200 cm² Height = 2 250 ÷ 200 = 11.25 cm

Correct answer: 11.25 cm

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