Questions

From Worst to Best

111 P6.RD.TL.16010139

Level 3
Yvonne will be 36 years old in 3 years' time. Now, Tina's age is ²₃ of Yvonne's age. What was Tina's age when she was 4 years less than 80% of Yvonne's age?

4 m

Video Attempt

112 P5.RD.JM.17083302

Level 3
Titus bought some custard and apple pastry puffs in the ratio of 7 : 6. After Titus's classmates ate an equal number of the two types of pastry puffs, there were 35% fewer apple than custard pastry puffs. In the end, there were 165 pastry puffs left. How many pastry puffs of each type were eaten?

4 m

Attempt

Ratio to units Percent to units More than or less than Equal stage Unchanged difference Units table

113 P5.ST.JC.18121164

Level 3
Adam has some blue stickers and red stickers.
If 50 blue stickers are added, 70% of the stickers will be red stickers.
If 200 blue stickers are added, 40% of the stickers will be red stickers.

How many blue stickers are there?
How many red stickers are there?

4 m

Attempt

Percent of a set Percent to units Unchanged quantity Double if Units table Units equations

114 P5.ST.JC.18121165

Level 3
Adam has some blue stickers and red stickers.
If 50 blue stickers are removed, 40% of the stickers will be red stickers.
If 200 blue stickers are removed, 70% of the stickers will be red stickers.

How many blue stickers are there?
How many red stickers are there?

4 m

Attempt

Percent of a set Percent to units Unchanged quantity Double if Units table Units equations

115 P5.ST.JC.18121166

Level 3
Adam has some blue stickers and red stickers.
If 100 blue stickers are added, 40% of the stickers will be red stickers.
If 50 blue stickers are removed, 70% of the stickers will be red stickers.

How many blue stickers are there?
How many red stickers are there?

4 m

Attempt

Percent of a set Percent to units Unchanged quantity Double if Units table Units equations

116 P5.ST.JC.18121168

Level 3
Adam has some blue stickers and red stickers.
If Adam receives another 60 blue stickers,
the blue stickers will be 80% as many as the red stickers.
If Adam receives another 300 red stickers,
the blue stickers will be 20% as many as the red stickers.

How many blue stickers are there?
How many red stickers are there?

4 m

Attempt

Percent to units Unchanged quantity Double if Units table Units & parts Substitution

117 P5.ST.JC.18121169

Level 3
Adam has some blue stickers and red stickers.
If Adam gives away 50 blue stickers,
the blue stickers will be 10% as many as the red stickers.
If Adam gives away 250 red stickers,
the blue stickers will be 40% as many as the red stickers.

How many blue stickers are there?
How many red stickers are there?

4 m

Attempt

Percent to units All change Double if Units table Unchanged quantity Units & parts Substitution

118 P5.ST.JC.18121170

Level 3
Adam has some blue stickers and red stickers.
If Adam receives another 50 blue stickers,
the blue stickers will be 50% as many as the red stickers.
If Adam gives away 50 red stickers,
the blue stickers will be 40% as many as the red stickers.

How many blue stickers are there?
How many red stickers are there?

4 m

Attempt

Percent to units All change Double if Units table Unchanged quantity Units & parts Substitution

119 P6.RD.NK.21060208

Level 3 PSLE
Allie had a total of 225 pink and blue beads. She used 45 pink beads and 60% of the blue beads. After that, the ratio of the number of pink beads to blue beads Allie had was 1 : 2.

What fraction of her blue beads did Allie use? Give your answer in the simplest form.
How many beads did Allie have in the end?

4 m

Attempt

Fraction of a set F Simplest form Ratio to units Percent to units All change Units table

120 P5.RD.JM.17083213

Level 3
50% of Amin's money was $350 less than Dave's money. When Amin spent 45% of her money and Dave spent 60% of his money, they had the same amount of money left. Find the amount of money Dave had at first.

4 m

Attempt