Question

A school provide milk daily in a cyclindrical glass in a diameter 7cm.if the glass is filled with milk with height 12cm.find how many litre of milk is needed to serve 1600 students

Answer 1

Hey mate ^_^

=======
Answer:
=======

Diameter of the cylindrical glass = $7cm$

Radius of the cylindrical glass

$= \frac{7}{2}$

$= 3.5cm$

Height upto the glass filled with milk = 12cm

Volume of the cylindrical glass

$= \pi r^{2} h$

$= \frac{22}{7} \times 3.5 \times 3.5 \times 12$

$= \frac{3234}{7}$

$= 462cm^{3}$

Now,

Volume of 1 cylindrical glass$= 462cm^{3}$

So,

Volume of 1600 cylindrical glasses

$= 1600 \times 462$

$= 739200cm^{3}$


Now,


$1000cm ^{3} = 1\:litre$


$739200cm ^{3} = 739.2 \: litres$


Therefore,


$739.2\: litres$ of milk is needed to serve $1600$ students.

#Be Brainly❤️

Answer 2

HEY Buddy....!! here is ur answer

Answer : 739.2 litre

Given that : Height of cylindrical glass = 12cm

and Diameter = 7 cm

=> Radius = 7/2 = 3.5 cm

As we know that : Volume of Cylinder = πr²h

According to the question :

$\frac{22}{ 7} \times {(3.5)}^{2} \times 12 \\ \\ = > \frac{22}{7} \times 3.5 \times 3.5 \times 12 \\ \\ = > 462 \: {cm}^{3} \\ \\ = > 462 \times 0.001 = 0.462 \: litre$

As we know that : 1 cm³ = 0.001 litre

We have to find litre of milk is needed to serve 1600 students, then
$0.462 \times 1600 \\ \\ = 739.2 \: litre$

So, 739.2 litre milk is needed to serve 1600 students.

I hope it will be helpful for you...!!

THANK YOU ✌️✌️