Time: 2 hrs i.
Course Code: CSC 121. Course Title: Elements of Computer Programming
INSTRUCTION: Answer Four (4) Questions only
Jlca
)
Define an Algorithm and explain its properties [3% marks!
(b) Write an Algorithm to withdraw money from a Savings Account using automated teller
machine; assume that the minimum balance allowed by the Bank is N2000. 15 masks)
(c) Draw a flowchart for the algorithm in lb.[3 marks)
(d) Use the FOR-TO-NEXT statement to write a program to compute the total and average
scores of 10 students offering 5 subjects per student. [6 marks]
2() Write the QBASIC expression for the following algebraic equations:
A = | Sin x - Tan y (3xy + 2(6x - 2y) ü. M = 2Sint
2Sin(x + y) Cox
ZGM : Sin *+Cos y
N = k/2222
iv. M=
[2 marks each)
(b) Given A=20; B = 16; C = A*B; D= VC Evaluate each of the following operations (6man
(i) S= (C > D) OR (D<A) (ii) X= NOT (CD) AND B<C (iii) Y = (B^2) MOD A
(iv) X = SQR (B*2) A
Distinguish between logical operation and relational operation (use examples to illustrate yo
marks)
3 (a) What is Error? Explain the different types of error in programming [6marks]
(b) Draw a flowchart to generate the sequence
[3 marks/
(c) Write a QBASIC program to find the difference between the sum of all even numbers and
iii.
c?
2ay
16
N
1
2'3
N
follodd numbere between 1 and
16 16marks​