Answer:
Marcis answered 44 questions correctly that was 5 more than Donovan.
Step-by-step explanation:
Teacher gave a test paper with 50 questions, each worth the same number.
Donovan got 39 points out of 50 points.
Percentage marks that Donovan got = 
= 
= 78%
If Marcis scored 10% more then his percentage of marks will be = 78 + 10 = 88%
Now we will calculate the marks Marcis obtained.
Since 88% means, out of 100 marks Marcis scored 88 but the test paper was of total 50 marks then the marks scored by Marcis will be
= 
= 44
Marcis scored more than Donovan = 44 - 39 = 5