Advanced Mathematics Primary 3 Volume of Liquid

In a science lab activity, Ravi sets up three beakers. Beaker A contains 380 mL of water, Beaker B contains 240 mL and Beaker C contains 165 mL. He pours 85 mL from Beaker A into Beaker B. He then transfers 60 mL from Beaker B into Beaker C. What is the volume of water in Beaker B after both transfers?

A 265 mL
B 325 mL
C 180 mL
D 215 mL
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Worked Solution

Step 1: Apply the first transfer — 85 mL poured FROM Beaker A INTO Beaker B. Beaker B: 240 + 85 = 325 mL Step 2: Apply the second transfer — 60 mL transferred FROM Beaker B INTO Beaker C. Beaker B: 325 − 60 = 265 mL Step 3: State the final volume in Beaker B. Answer: The volume of water in Beaker B is 265 mL.

Correct answer: 265 mL

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