Question

A total of $18816$ tiles were used for decorating the rooms, kitchen and bathrooms for all apartments in a building. Each apartment had $2$ rooms, $1$ kitchen, $2$ bathrooms. The number of tiles used are given below:
$1$ Kitchen$=64$ tiles; $1$ Room$=84$ tiles and $1$ Bathroom$=52$ tiles
How many apartments are there in the building?

• A. $86$
• B. $94$
• C. $56$
• D. $65$

Answer 1

The correct option is C $56$

Total number of tiles used $=18816$
Number of tiles used in 1 apartment
$=2\times 84+64+2\times 52$
$=168+64+104=336$
So, number of apartments in the building$=18816÷336=56$