Questions

From Worst to Best

31 P5.ST.JC.18121112

Level 2
Adam is 10 years old. The total age of Adam and Bryan is 50 years. How many years' time will the ratio of Adam's age to Bryan's age be 1 : 3?

2 m

Attempt

32 P5.ST.JC.18121113

Level 2
Adam has 30 blue stickers and 70 red stickers.
After giving away the same number of stickers,
the ratio of the blue stickers and the red stickers becomes 1 : 3.
How many stickers are given away?

2 m

Attempt

Ratio to units Unchanged difference Units table

33 P5.ST.JC.18121114

Level 2
Adam has 30 blue stickers and 120 red stickers.
After buying the same number of stickers,
the ratio of the blue stickers and the red stickers becomes 1 : 3.
How many stickers does he buy?

2 m

Attempt

Ratio to units Unchanged difference Units table

34 P5.ST.JC.18121115

Level 2
The ratio of the number of blue stickers to red stickers is 5 : 2.
After Adam gives away another 10 blue stickers and 10 red stickers,
the ratio of the number of blue stickers to red stickers is 3 : 1.
How many stickers does Adam have now?

3 m

Attempt

Ratio to units Unchanged difference Units table

35 P5.ST.JC.18121116

Level 2
The ratio of the number of blue stickers to red stickers is 3 : 1.
After Adam buys another 10 blue stickers and 10 red stickers,
the ratio of the number of blue stickers to red stickers is 5 : 2.
How many stickers does Adam have now?

3 m

Attempt

Ratio to units Unchanged difference Units table

36 P6.RD.TL.16010137

Level 3
Fred's father is 7 times as old as his son. His father will be 35 years old in 7 years' time. In how many years' time will Fred be 60% that of his father?

4 m

Attempt

Percent to units Times as many Unchanged difference Units table

37 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

Fraction to units Percent to units Unchanged difference More than or less than Units table Units & parts

38 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

39 P6.FR.TL.16010120

Level 3
Rael's age is ²₅ of his granduncle's. His granduncle will be 63 years old in 8 years' time. In how many years' time will Rael's age be ²₃ that of his granduncle's?

3 m

Attempt

Fraction to units Unchanged difference Units table

40 P5.RA.JC.17083290

Level 3
In January, Anna and Ryan had stamps in the ratio 5 : 2. In February, each of them gave away the same number of stamps. Anna then had thrice as many stamps as Ryan.

Find the ratio of the number of stamps Ryan had in January to the number of stamps he had in February.
Find the ratio of the total number of stamps both had in January to the total number of stamps both had in February.

4 m

Attempt

Finding ratio R Simplest form Ratio to units Times as many Unchanged difference Units table

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