Task instructions
Solve efficiently and select the best answer. Show your working in the practice workspace.
The ratio of red to blue objects is 3:5. If there are 40 objects, how many are red?
A. 15
B. 12
C. 18
D. 24
Practice workspace
Write notes or your response
02:00
Reveal answer key / expected response
A — 15
Suggested approach
Translate the statement into mathematical form; compute; check units and reasonableness.
Official-style scoring criteria
Correct result and sound quantitative reasoning.