David is 40 years old. He is having a hard time seeing at night when he drives because his eyesight has decreased around 50 percent since he was 20. His night vision will likely decrease by another _____ by the time he is 60.
A)10 percent
B)30 percent
C)50 percent
D)70 percent

Question

Quizplus · Accepted Answer

As people age, their night vision typically continues to decline. If David's eyesight has already decreased by 50 percent since he was 20, it is likely to decrease by another 50 percent by the time he is 60, as age-related changes in vision tend to accelerate with age.

David Is 40 Years Old