1 P5.ST.JC.18121021
Level 2
Adam is 25 years old.
Bryan is 5 years old.
In a few years' time, Adam will be 3 times as old as Bryan.
  1. In how many years' time will Adam be 3 times as old as Bryan?
  2. How old will Adam be by that time?
3 m
Times as many Unchanged difference Units table
2 P5.ST.JC.18121022
Level 2
Adam is 35 years old.
Bryan is 15 years old.
A few years ago, Adam was 3 times as old as Bryan.
  1. How many years ago was Adam 3 times as old as Bryan?
  2. How old was Adam then?
3 m
Times as many Unchanged difference Units table
3 P5.ST.JC.18121023
Level 2
Adam has 90 red stickers.
He has 3 times as many red stickers as blue stickers.
After he buys an equal number of red and blue stickers, the number of red stickers is 2 times that of the blue stickers.
  1. How many red stickers are there in the end?
  2. How many blue stickers are there in the end?
  3. How many stickers are there in the end?
  4. How many stickers does Adam buy?
4 m
Times as many Unchanged difference Units table
4 P5.ST.JC.18121024
Level 2
Adam has 80 red stickers.
He has 2 times as many red stickers than blue stickers.
After he gives away an equal number of red and blue stickers,
the number of red stickers is 3 times that of the blue stickers.
  1. How many red stickers are there in the end?
  2. How many blue stickers are there in the end?
  3. How many stickers are there in the end?
  4. How many stickers does Adam give away?
4 m
Times as many Unchanged difference Units table
5 P4.ST.JC.18120949
Level 3
Adam was 3 times as old as Bryan 10 years ago.
Their total present age is 60 years now.
  1. How old is Adam now?
  2. How many years is Adam older than Bryan?
  3. How old is Bryan in 20 years' time?
4 m
More than or less than Times as many Unchanged difference Units table
6 P4.ST.JC.18120950
Level 3
Adam is 3 times as old as Bryan now.
In 10 years time, their total age is 60 years.
How old is Adam now?
  1. How old is Bryan now?
  2. How many years is Bryan younger than Adam?
  3. How old was Adam 20 years ago?
4 m
More than or less than Times as many Unchanged difference Units table
7 P6.RD.JC.22031807
Level 2 PSLE
Sue had a box of black beads and red beads in the ratio 13 : 7. She removed an equal number of black beads and red beads from the box. The ratio of the number of black beads and red beads left in the box became 3 : 1. What percentage of the beads were left in the box?
2 m
Ratio to units Finding percent Equal stage change Unchanged difference Units table
8 P6.RD.TL.16010117
Level 2
The age of Will is 57 of Henry's age. 3 years later, the ratio of Will's age to Henry's age is 3 : 4. How old is Henry at first?
2 m
Fraction to units Ratio to units Unchanged difference Units table
9 P6.RD.TL.16010119
Level 2
Anna had $20 more than Betty at first. After Anna and Betty spent an equal amount of money, Betty had 35 as much as Anna. How much money did Anna have left?
2 m
Fraction to units Money More than or less than Equal stage change Unchanged difference Units table Units & parts
10 P6.RA.TL.16010140
Level 2
Carl bought some mangosteens and soursops in the ratio of 1 : 4 . After buying another 24 fruits each, the ratio becomes 5 : 12. Find the number of mangosteens and soursops he has now.
2 m
Ratio to units Unchanged difference Units table

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