The Rule of 70 States That If Y_t Grows at a Rate

question 34

Multiple Choice

The rule of 70 states that if y_t grows at a rate of g percent per year, then the number of years it takes y_t to:

• A) double is approximately equal to 70/g.
• B) double is exactly equal to 70/g.
• C) double is approximately equal to g/70.
• D) triple is approximately equal to 70/g.
• E) double is approximately equal to 70/(1 +g).

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