Answer
it will take 7 minutes for 2450 gallons of water to pass under the bridge
Explanation
Rate = Gallons of water / time
Given
Gallons of water = 1750
Time = 5 minutes
Rate = 1750 / 5
Rate = 350 gallons / minute
At the same rate, calculate how long it will take 2450 gallons of water to pass under the bridge
Since rate = Gallons of water/time
Gallons of water = rate * time
Time = Gallons of water / rate
Gallons of water = 2450
Rate = 350 gallons / minute
Time = 2450 / 350
Time = 7 minutes
Hence, it will take 7 minutes for 2450 gallons of water to pass under the bridge