Question

A river 3 m deep and 40 m wide is flowing at the rate of
2 km per hour. How much water will fall into the sea in a
minute ?​

Answer 1

first consider that the river is in shape of cuboid ( a diagram will be attached at the end )

Water flowing in river in 1 hr = 2km

( as depth is given in metres we will convert 2km in metres )

as we all know

1km = 1000m

so 2 km(s) will be equal to 2×1000= 2000m

Water flowing in river in 60 minutes = 2000metres

$water \: flowimg \: im \: 1mimute \: = \frac{2000}{60} \\ = \frac{100}{3}$

$length \: = \frac{100}{3} m$

Breadth = 40m

height = 30 m

.°. Volume of water fall in sea in 1 minute = Volume of cube

$= l \times b \times h \\ = \frac{100 \times 40 \times 3}{3} \\ 4000 \: metres$

thanks

mark brainliest

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