Standard Mathematics Primary 3 Volume of Liquid

During a science experiment at Queenstown Primary School, Ravi uses a measuring cylinder to measure some water. The cylinder is marked with lines at every 50 ml, from 0 ml to 300 ml, and each 50 ml gap is divided into exactly 2 equal smaller divisions throughout the cylinder. The water level is at the 3rd small division above the 200 ml mark. What is the volume of water in the cylinder?

A 275 ml
B 300 ml
C 250 ml
D 225 ml
Show Worked Solution

Worked Solution

Step 1: Identify the gap between two major marks: 250 ml − 200 ml = 50 ml. Step 2: Count the number of small divisions in that gap: 2 small divisions. Step 3: Find the value of each small division: 50 ml ÷ 2 = 25 ml per division. Step 4: The water is at the 3rd small division above 200 ml. Volume = 200 + (3 × 25) = 200 + 75 = 275 ml. Answer: The volume of water is 275 ml. Answer: 275 ml

Correct answer: 275 ml

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