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The average television prime-time advertising unit of 20 seconds cost $30,000 in 1973 and $50,000 in 1977. What was the approximate percent increase in the cost of a unit?
A. 20%
B. 33%
C. 40%
D. 60%
E. 67%
The OA is E
The average television prime-time advertising unit of 20 seconds cost $30,000 in 1973 and $50,000 in 1977. What was the approximate percent increase in the cost of a unit?
A. 20%
B. 33%
C. 40%
D. 60%
E. 67%
The OA is E
