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Daily Math Challenge

📚 Science ⭐ Hard 🎓 Grade 6-8
A chemical reaction requires 3 parts A to 5 parts B. If you have 30 units of A, how much B do you need?
Answer
50 units

📝 Step-by-Step Solution

1
Ratio A:B = 3:5
2
A available: 30
3
Scale factor: 30 ÷ 3 = 10
4
B needed: 5 × 10 = 50
💡 Helpful Hints
• Find scale factor
• Multiply ratio by scale factor