The monthly rent of a shop of dimension 20feet × 15feet is Rs.3600. What is the annual rent per square foot of the shop?	Choose one.
A) 43  B) 144  C) 68  D) 87  E) 92
Sol. Monthly rent per square feet = 3600/(20*15)= 
<gadget id="calculator">3600/(20*15)</gadget>
<output>12</output>
12   &amp; Annual rent per square feet=12*12= 
<gadget id="calculator">12*12</gadget>
<output>144</output>
144   Answer : 144
<result>B</result>
The monthly rent of a shop of dimension 20feet × 15feet is Rs.3600. What is the annual rent per square foot of the shop?