Question

A cylindical milk tank of diameter 3.5 meter and height 7 m how many liters of milk can store in this tank

Answer 1

Milk can store the tank =
$\pi \times r {}^{2} \times h$
Here,
r=3.5=7/2
h=7

now,

milk contains in tank=22/7*7/2*7/2*7
=11*7*7/2
=269.5liters

Answer 2

$\orange{total \: storage = total \: volume \times 1000 } \\ \\ \purple{volume = \pi {r}^{2}h } \\ \\ \purple{ \frac{22}{7} \times \frac{35}{20} \times \frac{35}{20} \times 7} \\ \\ \purple{5.5 \times 3.5 \times 3.5 = 67.375m {}^{3} } \\ \\ it \: can \: store : \\ \\ 67.375 \times 1000 = 67375litre$