question_answer

A rectangular lawn is 30 m by 20 m. It has two roads each 2 m wide running in the middle of it, one parallel to the length and the other parallel to the breadth. Find the Area of the roads.

A) \[98\,\,c{{m}^{2}}\]                        

B) \[\text{96}\,\,c{{m}^{2}}\]       

C) \[76\,\,m{{m}^{2}}\]           

D) \[\text{95}\,\,{{m}^{2}}\]

Correct Answer: B

Solution :

Area of roads \[=\left( 20\times 2+30\times 2-2\times 2 \right)\] \[=\left\{ 40+60-4 \right\}=96{{m}^{2}}\]