Out of a group of 25 tourists, 10 can speak Gujarati, 12 can speak Marathi, 5 can speak both Gujarati as well as Marathi. Identify the number of people who can neither speak Gujarati nor Marathi.

Given:
Total number of tourists = 25
Number of tourists who can speak Gujarati = 10
Number of tourists who can speak Marathi = 12
Number of tourists who can speak both Gujarati and Marathi = 5

Total tourists = 25

Total tourists who speak Gujarati and Marathi = 5 + 5 + 7 = 17

Number of people who speak neither = 25 − 17 = 8

Thus, the correct answer is (c).