Skip to content

Ask the Tutor ACCA MA

Budget

BBrian5y ago
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
John MoffatJohn MoffatTutor5y ago#1
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.
Sign into reply to this topic.