Question 9 of 10
2 Points
According to the rule of 72, in about how many years will $78 be worth $39 if
the rate of inflation is 5.8%?
A. 11.9 years
B. 12.4 years
C. 13.4 years
D. 6.7 years
SUBMIT

Respuesta :

Answer:

  B. 12.4 years

Step-by-step explanation:

The rule of 72 says the doubling period multiplied by the interest rate in percent is equal to 72. Here, we're concerned with the doubling of the price index. That period will be ...

  72/5.8 ≈ 12.4 . . . years