31 P5.ST.JC.18121104
Level 3
A special tea is a mixture of three kinds of tea leaves A, B and C in the ratio 5 : 3 : 2.
1 kg of each kind of tea leaves costs $4, $20 and $10 respectively.
What is the cost of 15 kg of this special tea?
3 m
Ratio to units Sets Units method
32 P5.ST.JC.18121105
Level 1
Adam has blue and red stickers in the ratio of 5 : 2.
He has 30 more blue stickers than red stickers.
  1. How many stickers does Adam have?
  2. If Adam gives away 10 blue stickers, what is the new ratio of the number of blue stickers to blue stickers?
3 m
Finding ratio R Simplest form Ratio to units More than or less than Unchanged quantity Units method
33 P5.ST.JC.18121106
Level 2
Adam and Bryan have some stickers in the ratio of 3 : 2.
When Adam gives away 40 stickers,
the ratio of the stickers becomes 1 : 3.
  1. How many stickers do they have at first?
  2. How many stickers do they have in the end?
3 m
Ratio to units Unchanged quantity Units table
34 P5.ST.JC.18121107
Level 2
Adam and Bryan have some stickers in the ratio of 1 : 3.
When Adam buys another 40 stickers,
the ratio of the stickers becomes 3 : 2.
  1. How many stickers do they have at first?
  2. How many stickers do they have in the end?
3 m
Ratio to units Unchanged quantity Units table
35 P5.ST.JC.18121108
Level 2
Adam has blue and red stickers in the ratio of 1 : 2.
When 40 red stickers are replaced with the same number of blue stickers,
the ratio of the number of blue and red stickers will be 3 : 4
How many stickers are there altogether?
3 m
Ratio to units Unchanged total Units table

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