1201 P5.ST.JC.18121177
Level 3
In a school, there is a total of 400 people.
30% are adults.
The rest are children.
The number of boys and girls is in the ratio of 2 : 5.
  1. What percentage of the people are boys?
  2. How many girls are there?
3 m
Ratio to units Finding percent Percent of a set Percent to units Combined repeated identity Remainder concept Units table
1202 P5.RA.NK.22122919
Level 3
Last Saturday, Jack withdrew an equal number of $10-notes and $50-notes from the bank. After spending 58 pieces of $10-notes and 10 pieces of $50-notes, the ratio of the remaining $10-notes to $50-notes became 2 : 5.
  1. How many $10-notes had he left?
  2. What was the total value of the notes which Jack withdrew from the bank?
4 m
Ratio to units Money Equal stage before All change Sets Units equations Units table
1203 P6.RD.TL.16010126
Level 3
Queenie baked 390 cookies and cupcakes. After she gave 0.3 of the cookies and 0.4 of the cupcakes to her friends, she was left with an equal number of cookies and cupcakes. How many cookies had she left?
4 m
Decimal to units Equal stage after All change Units table Units manipulation
1204 P4.WN.JM.17102314
Level 2
Ken has some marbles. He has twice as many marbles as his brother. Given that they have 816 marbles altogether, how many marbles does his brother have?
2 m
Model Times-as-many Units method
1205 P4.AN.NK.23041231
Level 3
The figure is made up of a square ABCD and a rectangle DEFG. ∠CDG = 69°. ∠x is twice of ∠y. Find ∠x.
3 m
Right angle Square Rectangle Overlapping angles Model Times-as-many Units method
1206 P5.RA.JC.17083328
Level 3
There were 360 males and 400 females queueing up for a fan meeting. The ratio of the number of males to the number of females who left the queue was in the ratio 1 : 2. As a result, the ratio of the number of females became four times as many as the number of males who remained in the queue. How many people left the queue?
4 m
Ratio to units Times as many All change Unit equations Units table Units & parts Elimination
1207 P5.ME.JC.17083103
Level 2
The figures show 3 different fruits, a pineapple, a bunch of bananas and 2 similar mangoes. The mass of a mango is 23 of the mass of the bunch of bananas.
  1. Find the mass of the bunch of bananas.
  2. Find the mass of the pineapple.
4 m
Scale reading Mass Fraction to units Times as many Intervals Units method
1208 P5.ST.JC.18160201
Level 3
In a school, there is a total of 400 people.
30% are adults.
The rest are children.
The number of boys and girls is in the ratio of 5 : 9.
  1. What percentage of the people are boys?
  2. How many girls are there?
3 m
Ratio to units Finding percent Percent of a set Percent to units Combined repeated identity Remainder concept Units table Units manipulation
1209 P6.FR.JO.21042220
Level 3 PSLE
A box contained blue and white beads. At first, the number of blue beads was 13 the number of white beads. After 14 of the blue beads and 58 of the white beads were used, 75 beads were left.
  1. What fraction of the beads were used? Leave your answer in the simplest form.
  2. How many beads were there in the box at first?
3 m
Fraction of a set Fraction to units All change Units table Units manipulation
1210 P6.RD.TL.16010131
Level 3
Sean and David had some allowance in the ratio of 3 : 7. They shared some money to buy a bracelet for their cousin. The ratio of the amount paid by Sean to the amount paid by David was 1 : 2. If David was left with $176 and Sean had spent 14 of his money, how much was the bracelet they bought?
4 m
Fraction to units Ratio to units Money All change Units table Units manipulation

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