Order 2

Two production lines are available to fulfil an urgent order. The original line can produce the required goods in 15 hours, while the newer line, which has not yet been started up, could have the goods ready in 10 hours. The original line can be launched immediately. The new line requires a further 4 hours of preparation. How soon 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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