Tough and Tricky questions: Work/Rate Problems.
If it takes 70 workers 3 hours to disassemble the exhibition rides at a small amusement park, how many hours would it take 15 workers to do this same job? Answers:
A) 14
B) 11
C) 7
D) 7/3
E) 9/7
70 Workers = 3 hours then,   1 Worker = 3*70 Hours   30 Workers = (3*70) /(15)= 
<gadget id="calculator">(3*70) /(15)</gadget>
<output>14</output>
14 Answer. 14
<result>A</result>
Tough and Tricky questions: Work/Rate Problems.
If it takes 70 workers 3 hours to disassemble the exhibition rides at a small amusement park, how many hours would it take 15 workers to do this same job?