A researcher is comparing the effectiveness of three devices designed to help people who snore. There are 210 people who snore p
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Given:
Amount = 8700
Time = 3 years
Rate of interest = 24% per annum
To find:
The principal values.
Solution:
Formula for amount:
Where, A is amount, P is principal, r is the rate of interest and t is the number of years.
Putting , we get
Divide both sides by 1.906624.
Therefore, the principal value is about 4563.04.