Total volume of the tank=200 gallon

Given that, tank is half full,

so remaining volume of the tank to be filled=200-100=100 gallon.

Since 5 gallons of solution comes into the tank per minute and 3 gallons of solution goes out each minute,

Net flow of solution in the tank=5-3= 2...

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Total volume of the tank=200 gallon

Given that, tank is half full,

so remaining volume of the tank to be filled=200-100=100 gallon.

Since 5 gallons of solution comes into the tank per minute and 3 gallons of solution goes out each minute,

Net flow of solution in the tank=5-3= 2 gallons per minute.

Time required=`100/2=50` ` `

So, the time required for the tank be full = **50 minutes **