If the population of a certain country increases at the rate of one person every 40 seconds, by how many persons does the population increase in 1 hour? Choose the most appropriate option.
A) 90
B) 120
C) 150
D) 180
E) 160
90nswer = 1.5 * 60= 
<gadget id="calculator">1.5 * 60</gadget>
<output>90</output>
90   90nswer is 90
<result>A</result>
If the population of a certain country increases at the rate of one person every 40 seconds, by how many persons does the population increase in 1 hour?