Question

A river 5m deep and 30m wide is flowing at rate of 3cm per hour. The volume of water that runs into sea per minute​

Answer 1

Answer:

7.5 metric cube

Step-by-step explanation:

first of all, here we should know the formula of volume of a cuboid that is

Lenght x Breadth x height.

So, Step 1 : here breadth and height is given that is 30m and 5m so multiply both of them and we get 150m ok.

now, Step 2: we just have to multiply the length and we will get our answer but we have to keep 2 things in mind that is the unit and the time.

so if we see there is given per hour but we have to find in a minute and also the unit is not the same so for that just convert 150m into cm that is 15000cm and just multiply it by 3 but we have to find in a minute so also divide it by 60 as a 1 hour consists of 60 mins I think you will get it what I mean by thinking a little bit.

so conclusion : 15000 x 3/60 = 7.5 metric cube

I hope it will definitely help