A rectangular lawn of dimensions 80 m * 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m?
Choose the correct choice from the following.
A) 3909
B) 3907
C) 3905
D) 3900
E) 3901
Area = (l + b – d) d   (80 + 60 – 10)10 =&gt; 1300 m2   1300 * 3 = Rs.3900   25. The length of a rectangl.Answer:3900
<result>D</result>
A rectangular lawn of dimensions 80 m * 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m?