A patient in a hospital is given tea daily in a cylindrical cup of diameter 7 cm. If the cup is filled with tea to a height of 4 cm, how much tea the hospital has to prepare daily to serve 180 patients? (Use )
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 27.72 litres.
We know,
1 litre = 1000 cm3
Volume of cylinder = πr2h
Where, r = radius and h = height
According to the question;
Volume of the tea cup = (22/7) × (7/2)2 × 4
⇒ 154 cm3
The volume of tea served to 180 patients = (154 × 180) = 27720 cm3
⇒ 27720/1000 = 27.72 litres