The tank is filled with two pumps in 16 minutes. The first pump is filled in 30 minutes earlier than the second one. How many minutes is filled with the first pump?

Correct answer:

t1 =  22.9 min

Step-by-step explanation:

16Q1+16Q2=1 Q1t1=1 Q2t2=1 t1=t230  t1=22.9 min t2=52.9 min Q1=0.0436 Q2=0.0189

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