Question

solve this please fast​

Answer 1

Answer:

area of cross section of river= 2 x 45 = 90 m^2

so, water flowing into the sea= area of cross section x rate of flowing water= 90 x 3000

         = 270000 m^3

there water flowing per minute= 270000 / 60 = 4500 m^3

........... check ur answer

Answer 2

Step-by-step explanation:

Volume =area*velocity

Velocity =1/20m/min

Volume =45*2*1/20

Volume =4.5m3

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