Question

Five square flower beds each of sides 1.2 m are dug on a piece of land 4.8 m long and 4.2 m wide. What is the area of the remaining part of land?

• A. $12.60$ $m^2$
• B. $12.96$ $m^2$
• C. $11.96$ $m^2$
• D. $144$ $m^2$

Answer 1

The correct option is B $12.96$ $m^2$

Area of land $=4.8\times 4.2=20.16m^2$

Area of 1 flower bed $=1.2\times 1.2=1.44m^2$

$\therefore$ Area of 5 flower beds $=5\times 1.44=7.2m^2$

So, the area of the remaining part of land

$=20.16-7.2=12.96$ $m^2$