A bag contains 40 marbles. The ratio of red marbles to non-red marbles is 3 : 5. How many red marbles are there?
Show Worked Solution
Worked Solution
Step 1: Find the total number of parts.
Total parts = 3 + 5 = 8
Step 2: Find the value of 1 part.
1 part = 40 ÷ 8 = 5 marbles
Step 3: Find red marbles.
Red = 3 × 5 = 15 marbles
Answer: 15
Correct answer: 15
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