A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?  Choose the correct option
A) 2.91 m
B) 3 m
C) 5.82 m
D) None of these
E) Cannot be determined
Explanation:   Area of the park = (60 x 40) m2 = 2400 m2   Area of the lawn = 2109 m2   Area of the crossroads = (2400 - 2109)= 
<gadget id="calculator">(2400 - 2109)</gadget>
<output>291</output>
291   Let the width of the road be x metres. Then,   60x + 40x - x2= 291   =&gt; x2 - 100x + 291 = 0   =&gt; (x - 97)(x - 3) = 0   =&gt; x = 3   Answer: 3 m
<result>B</result>
A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?