Question

if intereste is compound half yearly then rate will become. ​

Answer 1

Answer:

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Answer 2

Explanation:

Computation of compound interest by using growing principal becomes lengthy and complicated when the period is long. If the rate of interest is annual and the interest is compounded half-yearly (i.e., 6 months or, 2 times in a year) then the number of years (n) is doubled (i.e., made 2n) and the rate of annual interest (r) is halved (i.e., made r2).  In such cases we use the following formula for compound interest when the interest is calculated half-yearly.

If the principal = P, rate of interest per unit time = r2%, number of units of time = 2n, the amount = A and the compound interest = CI

Then

A = P(1 + r2100)2n

Here, the rate percent is divided by 2 and the number of years is multiplied by 2

Therefore,  CI = A - P = P{(1 + r2100)2n - 1}