At what rate percent compound interest, does a sum of money become 1.44 times of itself in 2 years? Show
Answer Verified Hint: First, we will let the principal sum of money as ‘P’ and the rate of interest as ‘R’. we will use the conditions given in the question and formula of compound interest to form a different equation. And by solving those equations we will find the rate of interest. Complete step-by-step solution: Note: Compound interest (or compounding interest) is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods. The rate at which compound interest accrues depends on the frequency of compounding, such that the higher the number of compounding periods, the greater the compound interest. Compound interest is calculated by multiplying the initial principal amount by one plus the annual interest rate raised to the number of compound periods minus one. The total initial amount of the loan is then subtracted from the resulting value.
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At what rate per cent will a sum of 4000 yield 1 324 as compound interest in3 years?Thus, the rate of interest is 10%.
At what rate per cent of simple interest does a sum of money double itself in 12?Let the principal be x. Then, the amount after 12 years be 2x. Let the rate of interest be R. ∴ The rate of interest is 25/3%.
At what rate percent compound interest does a sum of money becomes 9 times in 2 years?Detailed Solution
The sum becomes 9 times in 2 years. Calculation: Let the principal be 'P'. ∴ The rate of interest is 200%.
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