Order 2

Two lines are available to fulfill the urgent order. The original line can produce the required goods in 15 hours, while the more modern line, which has not yet been launched, should have the goods ready in 10 hours. The original line can be launched immediately. The new line needs to be prepared for another 4 hours. How long can the order be ready for shipment?

Result

t = 8:24 h Wrong answer

Step-by-step explanation:

15t+10t4=1  t/15+(t4)/10=1  5t=42  t=542=8.4  t=542=8.4=8:24 h



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