Volume of a hollow cylinder of inner diameter 'd', outer diameter 'D' and height 'h' is:
AπD²h/4
BπD²h/4
Cπ(D²-d²)h/4
Dπ(D-d)²h/4
AπD²h/4
BπD²h/4
Cπ(D²-d²)h/4
Dπ(D-d)²h/4
Related Questions:
A statement is given followed by two assumptions numbered I and II. You have to assume everything in the statement to be true and decide which of the given assumptions is/are implicit in the statement.
Statement:
The demand for smartphones and laptops has increased substantially since the introduction of online classes in schools.
Assumptions:
I. People are buying smartphones and laptops to enable their children to attend online classes
II. Desktop computers cannot be used to attend online classes.