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Daily Math Challenge

📚 Measurement ⭐ Hard 🎓 Grade 6-8
Two pipes fill a pool. Pipe A fills it in 4 hours, Pipe B in 6 hours. If both work together, how long does it take?
Answer
2.4 hours

📝 Step-by-Step Solution

1
Pipe A rate: 1/4 pool per hour
2
Pipe B rate: 1/6 pool per hour
3
Combined rate: 1/4 + 1/6 = 3/12 + 2/12 = 5/12
4
Time: 1 ÷ (5/12) = 12/5 = 2.4 hours
💡 Helpful Hints
• Find each pipe's rate (fraction per hour)
• Add the rates together
• Take reciprocal to find time