Dear sir in the lectures of simple interest
In the example 1
Why can’t we find the future value by simply doing the below formula
Fv = pv + ( pv x rate x no of period )
That is
800 + ( 800 x 0.15 x 4 )
= 1280
Because In the answers it’s stated as 1200
Whereas when the formula is applied it appears 1280 ...
Please clarify this sir
Ask the Tutor ACCA MA
Budget
What you are doing is assuming that the interest is calculated on $800 for each of the 4 years.
That is not the case because the man is not putting $800 on deposit at the start. He only puts $200 on deposit at the start and only that will earn interest for all 4 years. The second $200 is deposited a year later and that will only earn interest therefore for 3 years, and so on.
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