Answer:
3/8
Explanation:
Let the number of mixed candies being bought by Karen be x. The number of snicker candies = (3/8)x and the number of twix candy = (1/4)x. Using
Total bought candy = number of snicker candies + number of twix candy + number of neither snickers nor twix
Let the neither snickers nor twix candy be y, hence:
x = (3/8)x + (1/4)x + y
x = (5/8)x + y
y = x - (5/8)x
y = (3/8)x
Hence 3/8 of the candies in the bag was neither snickers nor twix.
