Computer Science · Oct / Nov 2020 · Paper 21 · Question 1

For one array

One mark for naming of an array with a suitable data type and one mark for its use

Array

yearsWithoutClaim

Data type integer

Use

to store the % discount

Many correct answers, this is an example only.

For each validation check

One mark for identification of a check and one mark for the reason max 4 Check

presence check

Reason need to enter age to calculate price

Check

type check

Reason need to check age is a positive integer

Many correct answers, these are examples only.

Any six from:

MP1 Input with prompt if new customer

MP2 Check age greater than or equal 26

MP3 Check age less than or equal 70

MP4 Check number of years without a claim greater than or equal to 2 … MP5 … discount 10%

MP6 Otherwise discount 0%

MP7 Calculate new price and value of extra discount

MP8 Output new price and value of extra discount, with suitable message Sample answer

PRINT "Are you a new customer Y/N?"

INPUT new

discount ← 0

IF new = "Y" DO

IF age >= 26 AND age <= 70

THEN

IF yearsWithoutClaim >=2

THEN

discount ← price * 0.1

price ← price * 0.9

ENDIF

ENDIF

PRINT "New price", price

PRINT "Extra discount for new customer", discount ENDIF

Explanation

Any four from:

MP1 Provide a prompt and input to check if additional driver required MP2 Check response with IF/REPEAT/WHILE/CASE statement for yes MP3 … input age of additional driver

MP4 … Use of IF / REPEAT etc. to validate age

MP5 … use the age input to find / look up appropriate price increase MP6 … description of how the price to pay now is calculated

MP7 … description of how the price to pay now is displayed including the use of a suitable message

For no

MP8 … no output required or suitable message output

Programming statements can be used but must be explained.

Description

Any three from:

MP1 Use a variable (quotes) to keep a running total of the number of quotes provided

MP2 Ask, using prompt with input, customers if they are going to purchase the insurance

MP3 Use another variable (policies) to keep a running total of the number of insurances bought / not bought

MP4 Use these to calculate the percentage policies/quotes*100

Section B