<human>:  After evaluating his students on the final exams. Professor Oscar reviews all 10 questions on each exam. How many questions must he review if he has 5 classes with 35 students each?
<bot>: How many questions does he have to review? ** For each class, he has to review the questions of 35 students, in total, he will review 10 * 35 = <<10*35=350>>350 questions.
How many questions does he have to review? ** For the 5 classes, he will review a total of 350 * 5 = <<350*5=1750>>1750 questions.
#### 1750