Task instructions
Solve efficiently and select the best answer. Show your working in the practice workspace.
A 10 L mixture is 30% concentrate. How many litres are concentrate?
A. 3
B. 2
C. 3.3
D. 7
Practice workspace
Write notes or your response
02:00
Reveal answer key / expected response
A — 3
Suggested approach
Translate the statement into mathematical form; compute; check units and reasonableness.
Official-style scoring criteria
Correct result and sound quantitative reasoning.