1.

A $1000 investment earns interest at 4% per year, compound quarterly. How long will it take to double the value of the investment

Answer»

ANSWER:

If the interest per QUARTER is 4% (but interest is only compounded annually), then it will take (72 / 4) = 18 QUARTERS or 4.5 years to double the principal. If the population of a nation increases at the rate of 1% per month, it will double in 72 months, or SIX years.

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