If the population of a certain country increases at the rate of one person every 30 seconds, by how many persons does the population increase in 1 hour? Options
A) 100  B) 120  C) 150  D) 180  E) 160
Answer = 2 * 60= 
<gadget id="calculator">2 * 60</gadget>
<output>120</output>
120   Answer is 120
<result>B</result>
If the population of a certain country increases at the rate of one person every 30 seconds, by how many persons does the population increase in 1 hour?