You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication, or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.

a worm has fallen into a hole that is 26 inches deep . it climbs up 8 inches and slides back 3 inches every day . how many days will it take the worm to reach the top ?
5.2