Question

A School provide milk to the student daily in cylinder glass of diameter 7 cm if the glass is filled with milk upto a height of 12 cm find how many litre of milk is needed to serve 1600 students
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Answer 1

Answer:

ans is 739.3 liters

here your ans

Answer 2

Answer:

We have Diameter of cylinder = 7 cm

⇒ Radius of cylinder, r = 7/2 = 3.5 cm

Height of the milk upto which it is filled in the glass, h = 12 cm

Then, volume of milk in cylindrical glass,

V = πr2h

⇒ V = 22/7 × 3.5 × 3.5 × 12

= 462 cm3

This is the volume of milk in 1 cylindrical glass that serves just 1 student.

For 1600 students,

Volume of milk = 1600 × 462 cm3

= 739200 cm3

If 1 liter = 1000 cm3

that is, 1 cm3 = 0.001 liter

Then volume of milk for 1600 students

= 739200 × 0.001 = 739.2 liter

Thus, 739.2 liters of milk is needed to serve 1600 students

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