Question

on saturday, 1/8 of the people who visited were senior citizens, 1/8 were infants, 1/4 were children, and 1/2 were adults.how many of each group visited the zoo saturday?

Answer 1

The answer is one, one person from each group visited the group. 

1/8+1/8=1/4
1/4+1/4=1/2
1/2+1/2=1