Question

Small Basic 2. Write a program to display first 10 numbers in the series 8, 15, 23, - The program show also display the sum of the numbers displayed. ​

Answer 1

Answer:

In C Language using For Loop

#include<stdio.h>

int main(){

   int a = 8, b = 15,c,i,sum=0;

   printf("%d %d",a,b);

   for(i=1;i<=10-2;i++){

       c = a+b;

       printf(" %d ",c);

       a = b;

       b = c;

       sum+=c;

   }

   printf("\nSum is %d",sum+8+15);

   return 0;

}

Explanation:

Suppose the first number 8 be A.

Similarly, let the second number 15 be B.

This series is an example of the Fibonacci series in which the third number C is equal to the sum of A and B.

We print the first two numbers in the series before starting the loop so we put i<=10-2 or i<=8.

Furthermore,

8    15          23           38   61

A     B    C = A+B

Here, initially, A = 8 and B = 15, and C is the sum of A and B.

8    15    23          38          61

      A      B       C=A+B

Here, A is equal to the previous value of B and B is equal to the previous value of C and we have a new C whose result will be A+B.

8    15    23      38          61

                A      B       C=A+B

Here, A is equal to the previous B and B is equal to the previous C and we have a new C whose result is A+B.

And so on...

Also, we get the sum using,

Sum += C which is equivalent to Sum = Sum + C where initially Sum = 0 .