Year 7 - Simple Algebra

In a bag there are 5 red counters for every 2 green counters. If there are 10 green counters, there are _____ red counters.

If you have 3 pencils for every 2 erasers, and you have 12 erasers, you have _____ pencils.

There are 4 dogs for every 1 cat in a pet shop. If there are 8 cats, there are _____ dogs.

For every 3 apples, there are 2 oranges in a basket. If there are 9 apples, there are _____ oranges.

In a class, there are 2 boys for every 3 girls. If there are 15 girls, there are _____ boys.

A recipe needs 2 cups of sugar for every 5 cups of flour. If you use 10 cups of flour, you need _____ cups of sugar.

There are 7 toy cars for every 2 toy trucks in a store. If there are 14 toy trucks, there are _____ toy cars.

If for every 4 video games, there are 3 books, and you have 16 video games, you have _____ books.

There are 5 blue marbles for every 3 green marbles. If there are 15 green marbles, there are _____ blue marbles.

For every 6 chairs, there are 2 tables in a hall. If there are 18 chairs, there are _____ tables.