Question

1. Write a program to calculate the simple interest by accepting the Principal amount ,rate per annum and time.(SI = pnr/100) 2. Write a program to accept the profit and cost price of a product and find the profit percentage.

Answer 1

Answer:

Explanation:

#include <stdio.h>

int main()

{

float principle, rate, sinterest;

int time;

printf("Enter Principle Amount, Rate %% per Annum and Time\n");

scanf ("%f %f %d", &principle, &rate, &time);

sinterest = (principle * rate * time)/ 100.0;

printf ("Principle Amount = %5.2f\n", principle);

printf ("Rate %% per Annum = %5.2f%\n", rate);

printf ("Time = %d years\n", time);

printf ("Simple Interest = %5.2f\n", sinterest);

}

2

// C++ implementation to find Cost price

#include <iostream>

using namespace std;

// Function to calculate cost price with profit

float CPwithProfit(int sellingPrice, int profit)

{

float costPrice;

// required formula to calculate CP with profit

costPrice = (sellingPrice * 100.0) / (100 + profit);

return costPrice;

}

// Function to calculate cost price with loss

float CPwithLoss(int sellingPrice, int loss)

{

float costPrice;

// required formula to calculate CP with loss

costPrice = (sellingPrice * 100.0) / (100 - loss);

return costPrice;

}

// Driver code

int main()

{

int SP, profit, loss;

SP = 1020;

profit = 20;

cout << "Cost Price = " << CPwithProfit(SP, profit) << endl;

SP = 900;

loss = 10;

cout << "Cost Price = " << CPwithLoss(SP, loss) << endl;

SP = 42039;

profit = 8;

cout << "Cost Price = " << CPwithProfit(SP, profit) << endl;

return 0;

}