Benhur boiled 1 1/4 liters of water in a kettle. After 10 1/2 minutes he measured the water again. It had 3/4 liters left in the kettle. What is the amount of water that evaporates every minutes?

Correct answer:

w =  0.0476 l/min

Step-by-step explanation:

V1=114=1+14=1 4+14=54=1.25 l t=1012=10+12=10 2+12=212=10.5 min V2=3/4=34=0.75 l  V=V1V2=1.250.75=12=0.5 l  w=V/t=0.5/10.5=121 l/min=0.0476 l/min

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