Question

solve:
A rectangular water tank is 90cm wide and 40cm deep. if it can contain 576litres of water, what is it's length? ​

Answer 1

Step-by-step explanation:

Let the length of the rectangular tank be l cm.

Given its width is 90 cm, and depth is 40 cm.

Now the volume of the rectangular tank is 90×40×l=3600l cm

3

.

Given it can hold 576 litres =576,000 cm

3

of water.

Then

3600l=576,000

or,l=

36

5760

or, l=160.

So length is 160 cm.

Answer 2

Answer:

Let the length of the rectangular tank be l cm.

Given its width is 90 cm, and depth is 40 cm.

Now the volume of the rectangular tank is 90×40×l=3600l cm

3

.

Given it can hold 576 litres =576,000 cm

3

of water.

Then

3600l=576,000

or,l=

36

5760

or, l=160.

So length is 160 cm.