Question

Meena needs to serve mango juice to her guests in cylindrical tumblers of radius 7 cm and height 10 cm. If she wants to serve 25 guests, how much juice does she need to prepare? [Assume that the juice is filled up to the brim]

• A. 35 L
• B. 42.5 L
• C. 38.5 L
• D. 50L

Answer 1

The correct option is C

38.5 L

Since the juice is filled up to the brim, Volume of the juice in one Tumbler is equal to the Volume of the Tumbler.

Volume of each tumbler $=\pi r^{2}h$
$=\frac{22}{7}\times 7^2\times 10$
$=1540c{m}^3$

The total volume of juice required = Volume of one Tumblr x Number of Tumblers

$=1540\times 25=38500{cm}^3$
= 38.5 L