1 P5.ST.JC.18121190
Level 1
The total height of 4 girls and 5 boys is 1440 cm.
The average height of the 4 girls is 155 cm.
What is the average height of each boy?
1 m
2 averages
2 P5.ST.JC.18121191
Level 2
There are 4 girls and 5 boys.
The average height of the 4 girls is 155 cm.
The average height of 5 boys is 164 cm.
What is the average height of all the children?
2 m
2 averages
3 P5.ST.JC.18121198
Level 2
The average height of 4 girls is 100 cm.
The average height of 5 girls is 110 cm.
Find the height of the fifth girl.
2 m
2 averages
4 P5.ST.JC.18121199
Level 3
There are 4 girls and some boys.
The total height of the children is 1440 cm.
The average height of the 4 girls is 155 cm.
The average height of the boys is 164cm.
How many boys are there?
3 m
2 averages
5 P5.ST.JC.18121193
Level 2
The average cost of 5 books is $30.
After a book that costs $60 is removed,
  1. What is new total cost of all the remaining books?
  2. What is new average cost of all the remaining books?
3 m
2 averages Averaging out

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