$$\frac{7}{10}$$ were correct - 

In test A, Laura gest 14 out of 20 correct

$$\frac{1}{2}$$ were correct - 

In Test B, Sofia gets 35 out of 70 correct.

$$\frac{4}{5}$$ were correct - 

In Test C, Jacob go 4 out of 5 correct.

$$\frac{13}{25}$$ were correct - 

In Test D, Lucas got 104 out of 200 correct.

A receives more than B - 

A receives 10% of £80 and B receives 50% of £14

B receives more than A - 

A receives 35% of £90 and B receives 30% of £120

A receives the same as B - 

A receives 15% of £400 and B receives 80% of £75

Not enough information - 

A receives 85% and B receives 90%