41 P6.RD.JC.22031808
Level 3 PSLE
The number of boys and girls taking part in a quiz are in the ratio 4 : 7. These students are put into two groups. 60% of the boys and 30% of the girls are in Group 1. The rest of the students are in Group 2.
  1. What is the ratio of the number of students in Group 2 to Group 1? Give your answer in the simplest form.
  2. The number of boys in Group 2 is fewer than 50. What is the largest possible total number of students taking part in the quiz?
3 m
F Multiplication Finding ratio R Simplest form Ratio to units Percent of a set Sets Min-max
42 P5.RD.JM.17083136
Level 3
In a box, 45% of the pens are red, 15% are blue and the rest are yellow.
  1. What fraction of the pens is yellow? Give your answer in the simplest form.
  2. There are 588 yellow pens in the box. How many pens are there in the box altogether?
3 m
Fraction of a whole Percent of a set Percent to units Units method
43 P5.RD.JC.17083142
Level 3
Last year, there were 48 members in a school music club. The number of girls was 35 the number of boys.
  1. What percentage of the members were girls last year?
  2. This year, 4 boys left the club and 6 girls joined the club. What percentage of the members are girls this year?
4 m
Finding percent Percent of a set Fraction to percent Fraction to units Times as many All change Units table
44 P6.PC.TL.16010138
Level 3
60% of the pupils are boys. 40% of the boys and 40% of the girls wear cardigans. What percentage of the pupils do not wear cardigans?
3 m
Finding percent Percent of a set Percent of different bases Branching Unchanged total Units table
45 P6.PC.TL.16010107
Level 3
Carl was fixing a jigsaw puzzle. By the second day, the number of pieces he fixed was 20% of the number of pieces unfixed. After another 8 days, he fixed another 196 pieces and the number of unfixed pieces he was left with was 20% of the number of pieces fixed. How many pieces were left unfixed?
3 m
Percent of a set Percent to units Percent of different bases Unchanged total Units table Units manipulation
46 P6.PC.TL.16010131
Level 3
Henry, Jack and Liam sold some calculators. Liam sold 30% of the total number of calculators sold by Jack and Henry. Henry sold 20% of the total number of calculators sold by Jack and Liam. Jack sold 87 more calculators than Liam. Find the total number of calculators sold by all the boys.
3 m
Percent of a set Percent to units Percent of different bases Unchanged total Units table
47 P5.RD.JM.17083119
Level 3
There are 20% as many green beads as red beads in May's collection of beads. The number of purple beads is 30% fewer than the number of red beads. There are 330 more purple beads than green beads.
  1. Find the total number of beads in the collection.
  2. What percentage are the number of red beads as compared to the number of purple beads? Leave your answer as a mixed number in its simplest form.
4 m
Mixed numbers Percent of a set Percent to units More than or less than Repeated identity Units table
48 P5.ST.JC.18121135
Level 2
Adam's monthly income is $2000.
He spends 60% and
saves the rest.
How many months will he take to save $4800?
3 m
Percent of a set Units method
49 P5.ST.JC.18121136
Level 2
Adam's monthly income is $2000.
He spends 60% and
gives 10% to his wife
and saves the rest.
How many months will he take to save $4800?
3 m
Percent of a set Units method
50 P5.ST.JC.18121141
Level 1
Adam has 200 red stickers and blue stickers.
40% of the stickers are blue.
  1. How many red stickers are there?
  2. How many less blue stickers than red stickers?
2 m
Percent of a set Percent to units More than or less than Units method

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