**Q.**Write an interactive program to calculate compound interest.

**Ans.**

/*c program for calculate compound interest*/

**#include**<stdio.h>

**#include**<math.h>

**#include**<conio.h>

**int**main()

**{**

float p,rate,time,ci;

printf("Enter principal amount : ");

scanf("%f",

**&**p); printf("Enter interest rate : ");

scanf("%f",

**&**rate); printf("Enter time period in year : ");

scanf("%f",

**&**time); //calculate ci

ci=p*(pow((1+rate/100),time)-1);

printf("\nCompound interest = %f",ci);

**return**

**0**;

**}**

__Output__:-Enter principal amount : 48500

Enter interest rate : 6

Enter time period in year : 2

Compound interest = 5994.600098

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good structured program

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