Question

A vessel in the shape of a cuboid is 30cm long ans 25cm wide.What should be it's height to hold 4.5 litres of water

Answer 1

Solution - ​​

Volume of vessel = 4.5 litres  

= (4.5/1000) m³  

= 0.0045 m³  

= (0.0045 × 100 × 100 × 100) cm³  

= 4,500 cm³  

____________

Length of Vessel = 30 cm  

Breadth of Vessel = 25 cm   ____________

Let's assume the height as x cm  

According to Question,  

Volume of Cuboidic Vessel = 4500 cm³  

30 × 25 × x = 4,500  

⇒ 750 × x = 4,500  

⇒ x = 4,500/750    

⇒ x = 6    

∴The height of cuboidic Vessel = x cm = 6 cm  

#Be Brainly  

Answer 2

given the Length of the vessel is 30cm and breadth is 25cm.

volume of water in the vessel = 4.5 litres

we know that 1 litre is 1000cm³, therefore 4.5 litres = 4.5×1000

= 4500cm³

therefore l×b×h = 4500cm³

=> 30×25×h = 4500cm³

=> 750×h = 4500cm³

=> h = 4500/750

=> h = 6cm

verification:-

volume = l×b×h

= 30×25×6

= 750×6

= 4500cm³

hence verified

thus the the height of the vessel is 6cm