Question

A vessel is in the shape of a cuboid is 30cm long and 25cm wide. How high must it be to hold 4.5 litres of water.

Answer 1

4.5 litres= 4500 cm (all units must be same)
4500= 30X25X (Height) this is the formula for a cuboid
Make height the subject of the formula so:
4500/30x25
=6

Answer 2

Answer:

6 cm

Step-by-step explanation:

Volume of water = 4.5 liters

1 liters = 1000 cubic cm

So, 4.5 liters = 4500 cubic cm

Thus the volume of water is 4500 cubic cm

Now we are supposed to find the height of tank that can hold 4500 cubic cm water

Volume of cuboid vessel = $Length \times Width \times Height$

So,  $4500=30 \times 25 \times Height$

$\frac{4500}{30 \times 25}=Height$

$6=Height$

Thus the height must be 6 cm