LLN Measurement and Data Interpretation 2 — Questions and Answers
Question 1: A thermometer reads 23 degrees at 9 am and 31 degrees at 2 pm. By how many degrees did the temperature increase?
- 6
- 8 (Correct answer)
- 10
- 7
Correct answer: 8
31 minus 23 = 8 degrees increase.
The temperature rose from 23 to 31 degrees, a difference of 8 degrees. Reading and interpreting temperature measurements is a practical skill relevant to Australian workers in outdoor industries, food safety, and healthcare.
Question 2: A bar graph shows monthly rainfall in millimetres: Jan 45, Feb 30, Mar 60, Apr 25. Which month had the highest rainfall?
- January
- February
- March (Correct answer)
- April
Correct answer: March
March had 60mm, which is higher than all other months shown.
Comparing the values: January 45mm, February 30mm, March 60mm, April 25mm. March has the highest rainfall at 60mm. Reading and interpreting bar graphs is a key data literacy skill used in weather, agriculture, and business reporting contexts across Australia.
Question 3: A container holds 2.5 litres. How many 250ml cups can be filled from this container?
- 8
- 10 (Correct answer)
- 12
- 5
Correct answer: 10
2.5 litres = 2,500ml. 2,500 divided by 250 = 10 cups.
Converting 2.5 litres to millilitres: 2.5 x 1,000 = 2,500ml. Dividing by 250ml per cup: 2,500 divided by 250 = 10 cups. This conversion between metric units is a standard measurement skill used in Australian hospitality, healthcare, and industrial settings.
Question 4: A pie chart shows weekly budget: Food 40%, Rent 30%, Transport 15%, Entertainment 10%, Savings 5%. Which two categories together account for 70%?
- Food and Savings
- Food and Rent (Correct answer)
- Transport and Entertainment
- Rent and Transport
Correct answer: Food and Rent
Food 40% + Rent 30% = 70%.
Adding Food (40%) and Rent (30%) gives exactly 70%. Interpreting pie charts and working with percentages is a key data literacy skill assessed in Australian LLN and financial literacy programs.
Question 5: A ruler shows a length of 7.3 cm. How many millimetres is this?
- 0.73 mm
- 73 mm (Correct answer)
- 730 mm
- 7.3 mm
Correct answer: 73 mm
1 cm = 10 mm, so 7.3 cm = 7.3 x 10 = 73 mm.
The metric conversion between centimetres and millimetres: 1 cm = 10 mm. Multiplying 7.3 cm by 10 gives 73 mm. This is a fundamental measurement conversion used in Australian trades, construction, and manufacturing industries.
Question 6: A line graph shows customer complaints over 5 months: 12, 18, 15, 9, 6. What is the overall trend?
- Steadily increasing
- Fluctuating with an overall decrease (Correct answer)
- Constant
- Steadily decreasing from the start
Correct answer: Fluctuating with an overall decrease
The numbers go up (12 to 18) then come down (18, 15, 9, 6). There is overall fluctuation but the general trend is downward.
The data shows an initial increase from 12 to 18, then a consistent decline to 6. The most accurate description is that numbers fluctuated (rose then fell) with an overall downward trend. Interpreting trends in data is a critical analytical skill for workplace reporting in Australia.
LLN Measurement and Data Interpretation 2
A thermometer reads 23 degrees at 9 am and 31 degrees at 2 pm.
By how many degrees did the temperature increase?