DATA ANALYSIS

71 P6.DA.JC.23030804

Level 2
The graph shows the temperature of water in a pot from 08 00 to 08 30.

For how many minutes was the temperature of the water 50°C and below?
During which two 5-minute intervals did the temperature of water decrease at the same rate?
What was the change in temperature per minute from 08 25 to 08 30? Give your answer in °C per minute.

3 m

Attempt

72 P6.DA.TL.18011917

Level 3
The line graph shows the number of dresses sold by a shop from July to December in 2013.

What was the average number of dresses sold per month from July to December in 2013?
The total number of dresses sold for the same period from July to December in 2012 was 672. Find the percentage decrease in the total number of dresses sold for the same period from 2012 to 2013.

3 m

Video Attempt

Line graph Average Time Percent change by

73 P6.DA.JC.23100210

Level 2 PSLE
The figure shows three boxes A, B and C on a balance scale. The average mass of the three boxes is 250 g. The mass of B is a 2-digit number. What is the smallest possible difference between the mass of A and B?

3 m

Attempt

Average W Place values Min-max Scale reading Mass

74 P6.DA.TL.18011918

Level 3
Four children made the following statements. Winnie : The average of Yoko's mass and my mass is 39 kg. Xtra : I am the heaviest. Yoko : Zane is 2 kg lighter than Xtra. Zane : Our masses are in consecutive order (In running sequence). What is the total mass of Winnie, Xtra and Yoko ?

3 m

Attempt

Average Mass More than or less than Units method

75 P6.DA.TL.16010102

Level 3
Farmer Nick has 4 rabbits. The mass of Rabbit G is the same as the average mass of the 4 rabbits. Rabbit H weighs 5 kg less than the average mass of the 4 rabbits. The mass of Rabbit I is 7 kg more than the average mass of the 4 rabbits. The mass of Rabbit J is 34 kg. Find the total mass of the 4 rabbits.

3 m

Attempt

Average Mass More than or less than Units table

76 P6.DA.TL.18011919

Level 3
The mass of 4 children, Mandy, Nellie, Peter and Richie were taken. Only 3 children can be weighed at one time. Mandy, Nellie and Peter weighed a total of 55 kg. Nellie, Peter and Richie weighed a total of 56 kg. Mandy, Peter and Richie weighed a total of 57 kg. Mandy, Nellie, and Richie weighed a total of 60 kg. What is the average mass of the 4 children?

3 m

Video Attempt

Average Mass W 4 operations Sets Mass Repeated identity Units & parts & boxes

77 P6.DA.JC.23030802

Level 2
The pie charts show the number of each type of stationery in boxes, A and B. The total number of stationery in Box A is twice the total number of stationery in Box B.

Find the percentage of erasers in Box A.
What fraction of stationery in Box B is erasers?
The number of erasers in Box A is 40. Find the number of erasers in Box B.

3 m

Attempt

Pie chart Right angle Fraction of a set Percent of a set Times as many Units method

78 P6.DA.JC.21022201

Level 3
Some pupils took a Math exam. Their average score was 74.7 marks. One of the pupils' scores was wrongly recorded as 68 marks instead of 86 marks. As a result, the average score was calculated as 73.5 marks. How many pupils sat for the exam?

3 m

Attempt

2 Averages Average with unknown quantity Number x value Units table

79 P6.DA.NK.21060943

Level 3 PSLE
Table 1 consists of numbers from 1 to 72. Kenny and Lionel are given a plastic frame that covers exactly 9 squares of Table 1 with the centre square covered.

Kenny puts the frame on the 9 squares shown in Figure 1. What is the average of the 8 numbers that can be seen in the frame?
Lionel puts the frame on some other 9 squares. The sum of the 8 numbers that can be seen in the frame is 320. What is the smallest number that can be seen in the frame?

3 m

Attempt

Average with min-max

80 P6.DA.NK.21060911

Level 2 PSLE
The bar graph shows the number of coloured pens sold by a shop. The table shows the prices of the pens.

What fraction of the pens sold were black pens? Give the answer in the simplest form.
From the sale of the pens, which coloured pens collected the least amount of money? What was the amount? Give the answers in the following way. (Eg Green, $1)