Level 2
There are 3 times as many dogs as birds.
There are 210 legs altogether.
  1. Find the number of animals.
  2. Find the number of less dogs than birds.
  3. Find the number of more dogs' legs than birds' legs.
3 m
Level 2
Adam has $800 in $5-notes and $10-notes.
There are 3 times as many $5-notes as $10-notes.
  1. How many notes are there?
  2. How much is the value of all the $10-notes?
3 m
Level 2
In a scout camp, each scout was given either 2 or 4 wafers for supper. The ratio of the number of scouts to the number of wafers was 3 : 10. What fraction of the scouts received 2 wafers each?
2 m
Level 3
The average cost of some books is $75.
When another 3 books are added,
the total cost increases by $190.
The average cost becomes $70.
How many books are there in the end?
3 m
Level 3
The average cost of some books is $30.
When a book that costs $90 is added,
the average cost of the books becomes $40.
How many books are there in the end?
3 m