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Computer Science · Oct / Nov 2025 · Paper 21 · Question 4

0478

As printed in the paper

Show the answer and mark scheme

  • 4(a)[5]

    One mark per bullet point

    input of adult and child number
    calculation of total without discount
    check if total people are 6 or more
    … apply discount to total
    output of the total

    Example:

    OUTPUT "Please enter the number of adults "

    INPUT Adult

    OUTPUT "Please enter the number of children "

    INPUT Child

    Total ← (Adult * 9.99) + (Child * 6.99)

    IF (Adult + Child) >= 6

    THEN

    Total ← Total – (Total * 15/100)

    ENDIF

    OUTPUT "The total cost is ", Total

  • 4(b)[2]

    One mark per bullet point

    Correct use of ROUND
    … to 2 decimal places

    Example

    Total ← ROUND(Total, 2)

  • 4(c)(i)[2]

    One mark per bullet point

    ( NOT A OR B)
    AND C

    (X =) (NOT A OR B) AND C

  • 4(c)(ii)[3]

    A

    B

    X

    C

    One mark per correct gate

  • 4(d)[2]

    One mark for correct symbol
    One mark for correctly completed table

    A

    B

    X

    0

    0

    1

    0

    1

    1

    1

    0

    1

    1

    1

    0

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