South Carolina authorities have been spreading sample questions across the state for high-stakes tests that students will start taking next spring. Below are some examples for 10th graders, whose assessments will be gradually introduced.

Tenth Grade – Science

In determining blood type, there are three alleles: A, B, and O. The A and B alleles are both dominant over O, but neither is dominant over the other. When both A and B are present in a genotype, they are considered co-dominant. This is the reason why there are four different blood types: A, B, AB, and O. Dan has type A blood. What is the likelihood that Dan and Joy will have a child with type O blood?

A. 0%

B. 25%

C. 50%

D. 75%

E. 100%

(Answer: B)

A force of 50N and a force of 80N are applied to a boulder. If these vectors are added in any direction, which resultant force is not possible?

A. 130N

B. 80N

C. 50N

D. 30N

E. 20N

(Answer: E)

Tenth Grade – Mathematics

There are 250 seniors in a class. Sixty percent of them have plans to attend college. Out of those who plan to go to college, 40 percent plan to attend a college outside of the state. How many students plan to go to a South Carolina college?

A. 60

B. 90

C. 40

D. 150

E. 190

(Answer: B)

DEF is the image of ABC under a dilation (or size change). What is the magnitude of the size change?

A. 17/8

B. 2

C. 3

D. 3.5

E. 4

(Answer: A)