Questions

From Worst to Best

21 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

22 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

23 P5.PC.JC.17083122

Level 3
Jane's savings is 20% more than Darwin's savings. If Jane's savings is decreased by 20%, their total savings will be $980. How much is Jane's savings?

3 m

Attempt

Percent change by Percent of different bases Money More than or less than Unchanged quantity Units table Decimal units

24 P6.DE.JC.17031305

Level 3 PSLE
Jade and Kylie went shopping together with a total amount of $93.90. Jade spent 2 times as much as Kylie. The amount Kylie had left was $11 more than what she had spent. She had 2 times as much money left as Jade.

How much money did Kylie spend?
How much money did Jade have at first?

4 m

Video Attempt

D 4 operations Money More than & less than Times as many All change Units table Decimal units

25 P6.RD.TL.16010123

Level 3
A fruit seller had apples and durians. The ratio of apples to durians was 5 : 3. After ³₄ of the apples and 38 durians were sold, there were 2 times as many apples as durians left. How many apples and durians were there at first?

4 m

Attempt

Fraction to units Ratio to units Times as many All change Units table Decimal units

26 P6.RD.JC.16010136

Level 3
Tank E contained 4 times as many guppies as Tank F. When 10% of the guppies in Tank E and 10% of the guppies in Tank F were transferred to Tank G, Tank G had 120 guppies, which was 20% more guppies than before. How many less guppies were there in Tank F than Tank E in the end?

4 m

Attempt

Percent to units Percent of different bases More than or less than Times as many Branching Internal transfer Unchanged total All change Units table Decimal units

27 P6.RD.TL.16010130

Level 3
Cathy had some coin collection. ¹₄ of them were red and the rest were yellow. She gave away 135 of the yellow coins and 50% of the red coins. She then had ¹₅ of her coin collection left. How many coins did Cathy give away?

4 m

Video Attempt

Fraction to units Percent to units All change Units table Units manipulation Decimal units

28 P4.DE.JM.171010123

Level 3
Nick spent ²₅ of his money on a watch which cost $90. If he had bought a book instead, he would have only spent 0.25 of his money. How much did the book cost?

3 m

Attempt

D Multiplication Fraction of a whole Fraction to units Money Decimal units

29 P5.ST.JC.18121180

Level 3
Adam and Bryan have some money in the ratio of 5 : 4
After Adam gives ¹₂ of his money to Bryan,
Bryan has $400 more than Adam in the end.

How much does Bryan have at first?
How much does Adam have in the end?
How much does Adam give to Bryan?

4 m

Attempt

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

30 P5.ST.JC.18121181

Level 3
Adam has some money.
Adam spends $300 on some stickers and
80% of the remainder on some marbles.
In the end, he has ¹₈ of the total amount left.