Martha needs to buy school uniforms for her son and daughter - NSC Mathematical Literacy - Question 1 - 2022 - Paper 1
Question 1
Martha needs to buy school uniforms for her son and daughter. She compares the prices of three different stores as shown in TABLE 1 below.
TABLE 1: COST OF SCHOOL U... show full transcript
Worked Solution & Example Answer:Martha needs to buy school uniforms for her son and daughter - NSC Mathematical Literacy - Question 1 - 2022 - Paper 1
Step 1
Identify whether the prices given in TABLE 1 are numerical or categorical data.
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Answer
The prices given in TABLE 1 are numerical data as they represent specific quantities or amounts associated with the items.
Step 2
Arrange, in ascending order, the prices for Store B.
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Answer
The prices for Store B, when arranged in ascending order, are: R54.99 (Grey shirt), R39.99 (Grey shorts), R18.99 (Grey school socks per pack), R11.99 (White school socks per pack), R159.99 (School shoes for girls), R169.00 (School shoes for boys), and R144.99 (White shirt for 2).
Step 3
Name the store that sells the cheapest grey shorts.
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Answer
The store that sells the cheapest grey shorts is Store A, with a price of R16.60.
Step 4
Determine the missing value P, if Martha bought all the school items as advertised at Store A.
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Answer
To find the total cost of all school items at Store A, we add the prices:
White shirt (R110.00 for 2)
Grey shirt (R163.00)
Grey shorts (R16.60)
Grey school socks (R40.50 for 2 packs)
White school socks (R85.00 for 2 packs)
School shoes (girls) (R349.00)
School shoes (boys) (R318.00)
Calculating the total yields:
extTotal=110+163+16.60+40.50+85+349+318=1,071.10
Step 5
The probability of selecting Store C to buy all the school items is 0.3333333333.
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Answer
In this context, probability refers to the likelihood of selecting Store C when choosing from three options (Stores A, B, and C). It is calculated as:
P(C) = rac{1}{3} = 0.3333
Step 6
Write down this probability as a percentage rounded to the nearest whole number.
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Answer
The probability of selecting Store C, expressed as a percentage, is calculated as:
