# Out of the four options, only one is correct. Write the correct answer.For calculation of interest compounded half yearly, keeping the principal same, which one of the following is true.A. Double the given annual rate and half the given number of years.B. Double the given annual rate as well as the given number of years.C. Half the given annual rate as well as the given number of years.D. Half the given annual rate and double the given number of years.

If interest is compounded half–yearly, then and T = 2T = 2n

Now, the amount will be C = A – P

So, half the given annual rate and double the given number of years.

Hence, option (d) is correct.

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