Page 1080 - SUBSEC October 2017_Neat

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01229020/KMS/SPEC 2017

Information Technology
Paper 02 – General Proficiency
Key and Mark Scheme
SPECIMEN PAPER

SO Question Key Mark
4. cont’d
(d) Begin
Declare number, sum, average, count [1]
count=0
sum=0
print “Please enter….”
read number
while(number!=-1)
sum=sum+number
count=count + 1
read number
end while
count=count+1
read number 10
end while
print “sum=”, sum
print “average=” sum/count
End

Declare appropriate variable [1 mark]
Initialise the variable [1 mark]
Read first value [1 mark]
Loop control condition [2 marks]
Statements in loop [3 marks]
Print Sum [1 mark]
Print Average [1 mark]

(e) The algorithm allows the user to enter 10 numbers [1]
after which it displays the smallest of the numbers
entered [1] (2 marks)

It does this by checking each number entered to see if
it is smaller that the smallest number received thus 5
far. [1] If it is, then that number is recorded as the
smallest number by storing it in the variable selected.
[1] When the program exits the loop any value stored in
the variable selected will be the smallest [1] – so it
is displayed using the print statement. (3 marks)

TOTAL 25