Series and Finance (HSC SSCE Mathematics Advanced): Quizzes

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Simple and Compound Interest
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What does PP represent in the simple interest formula I=PRnI = PRn?

The principal (original amount)

What type of sequence is formed by simple interest over successive time periods?

Arithmetic progression

What is the formula for the total amount after nn periods with simple interest?

P(1+Rn)P(1 + Rn)

What is the compound interest formula for total amount after nn periods?

An=P(1+R)nA_n = P(1 + R)^n

What type of sequence is formed by compound interest over time?

Geometric progression

What is the depreciation formula for value after nn periods?

An=P(1R)nA_n = P(1 - R)^n

What is the key difference between compound interest and depreciation formulas?

(1+R)(1 + R) vs (1R)(1 - R)

How do you convert a percentage rate to a decimal for use in formulas?

Divide by 100

What does 'pa' mean in interest rate notation?

Per annum (per year)

If interest is 24% pa compounded monthly, what is the monthly rate RR?

R=0.02R = 0.02

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