You invest $1000 in each of two accounts. Account A earns simple interest at a rate of 2.42% over 4 years. Account B earns simple interest at a rate of 2.42% over 24 months. Find the interest earned by each account. How does the interest earned by the two accounts compare? Use paper and pencil. Give an example of two principal amounts and two simple interest rates that would earn equal amounts of interest in one year. Give an example of two principal amounts and two periods of time for which the simple interest earned at 2.76% would be equal.
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Account A = $ 96.80
Account B = $ 48.40
Step-by-step explanation:
Account A
Principal = $1,000
rate = 2.42% = 0.0242
time = 4 years
To find the interest we will use the formula :
I = PTR
I = 1000 x 4 x 0.0242
I = $96.80
Account B
P = 1,000
t = 24 months = 2 years
r = 2.42% = 0.0242
I = PTR
I = 1000 x 2 x 0.0242
I = $ 48. 40
difference in interest = Interest a - Interest b
difference = 96.80 - 48.40
difference = $ 48 . 40
The interest on Account A doubles the interest on Account B
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