Question

Write a program in QBASIC and draw a flowchart

to find the sum of the following series :

S = 1 +22 + 33 ……………. N​

Answer 1

Language:

Qbasic

Flowchart:

Consider the attachment.

Program:

CLS

INPUT "enter n:";n

sum=1

FOR i= 2 TO n:

sum=sum+(11*i)

NEXT i

PRINT sum

END

Output:

Consider the attachment.

Explanation:

• Line 1: Clears screen.
• Line 2: Takes input in n.
• Line 3: Initializes sum.
• Line 4: Runs loop till n.
• Line 5: Increases sum by 11*i where i is no. of times the loop ran.
• Line 6: Prints final value of sum.
• Line 7: Ends the program.