Questions

From Worst to Best

31 P6.PC.TL.16010106

Level 3
Kate and Yvonne collected stamps. Kate gave 30% of her stamps to Yvonne and as a result, Yvonne's stamps increased by 70%. If Kate had 294 stamps left, find the total number of stamps the two girls had at first.

3 m

Video Attempt

32 P6.DA.JC.23030803

Level 2
The graph shows the amount of money Ron saved from his pocket money every month from January to May.

How much money did Ron save altogether from January to May?
What was the average amount of money Ron saved from January to May?
Ron saved $80 in June. The amount saved increased by 100% from June to July and another 100% from July to August. How much money did Ron save in August?

3 m

Attempt

Line graph Average Percent change by

33 P6.PC.TL.16010148

Level 3
The petrol tank of Fred's convertible was 80% empty. He went to the petrol kiosk and topped up 25ℓ of petrol. When he reached the theme park, the petrol tank was 90% full. Given that he used 4ℓ of fuel to get to the theme park from the kiosk, find the capacity of the petrol tank.

3 m

Attempt

Percent of a whole Percent change to Percent to units Percent of different bases Volume Unchanged total Units table Units manipulation

34 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

35 P6.PC.JC.18010809

Level 3 PSLE
At first, Leah had a total of 66 blue and purple balloons. 17 purple balloons burst. She then increased the number of blue balloons by 75%. After that, Leah had a total of 79 balloons. How many purple balloons did she have at first?

3 m

Video Attempt

Percent change by Percent to units All change Units table

36 P6.RD.JC.19082902

Level 3
Fabian, Gilbert and Henry had some marbles in the ratio of 2 : 3 : 5. Henry gave 40% of his marbles to Fabian and Gilbert. As a result, Fabian had the same number of marbles as Gilbert and Henry had 36 fewer marbles than Fabian.

What was the percentage increase in Fabian's marbles after receiving from Henry?
How many marbles did Gilbert have at first?

4 m

Video Attempt

Ratio to units Percent of a set Percent change by More than or less than Equal stage after Internal transfer Units table Decimal units

37 P6.RD.JC.19082904

Level 3
Andy, Bob and Charles collected game cards in the ratio of 7 : 4 : 9. After Charles gave ³₁₀ to Andy and Bob, Charles had 60 less game cards than Andy. The number of game cards that Ben had increased by 35%. How many game cards did Andy and Charles have?

4 m

Video Attempt

Fraction of a set Ratio to units Percent to units Percent change by More than or less than Internal transfer Units table Decimal units

38 P6.PC.JC.23100214

Level 2 PSLE
Carl had a collection of rulers, pens and markers. He had 85 rulers. 30% of his collection was pens. He had 51 fewer pens than markers.

How many pens did Carl have?
Carl gave away some pens. His total collection decreased by 20%. What percentage of his collection was pens after that?

4 m

Attempt

Percent of a set Percent change by More than or less than Units method

39 P6.PC.TL.16010119

Level 3
One minute ago, 80% of the students in a parade square were girls. 143 more students entered the parade square. As a result, the number of girls increased by 40% and the number of boys increased by 60%. How many students are in the parade square now?

4 m

Attempt

Percent of a set Percent change by Percent to units Percent of different bases All change Units table

40 P6.PC.TL.16010116

Level 3
Eva's salary is 30% more than Betty's salary. When their salaries are increased by 60%, their combined salaries will be $11040. How much was Eva's salary before the increase?

4 m

Attempt