Tiny Totts Is a Nursery School for Kindergarten Children

question 59

Multiple Choice

Tiny Totts is a nursery school for kindergarten children. When there are twenty children enrolled, total revenues and total costs are $6,000 and $3,200, respectively. When there are twenty-one children enrolled, total revenues and total costs are $6,300 and $3,255, respectively. The marginal cost when the twenty-first student enrolls in the school is:

• A)$55.
• B)$155.
• C)$300.
• D)$3,045.
• E)$3,255.