Question

It's urgent, solve it fast with step by step plz........

Water in a canal,6m wide and 1.5m deep,is flowing with a speed of 10km/hr. How much area will it irrigate in 20minutes if 12cm of standing water is needed ?

Answer 1

Volume of water flowing per hour = 6× 1.5 × 10000 = 90000 m^3

In 20 minutes volume of water flowing = 90000 × 20/60 = 90000/3 = 30000 m^3

Now as Water can change its volume according to medium

Now here height becomes 12 cm as 12 cm of standing water is needed

So volume = Area × height

Area = Volume/height = 30000/ 12/100

= 3× 10^6/12 = 10^6/4 = 250000 m^2

Answer 2

here is your answer.