Hi friend,
32 students planned to visit relatives.
23 students planned to go shopping
31 students planned to travel.
12 students planned to travel, and visit relatives.
8 students planned to travel, visit relatives, and go shopping.
7 students planned to travel but did not plan to visit relatives or go shopping.
30 students planned to do more than one of the three activities
11 students did not plan to visit relatives, go shopping, or travel.
32 + 23 + 31 + 12 + 8 + 7 + 30 + 11 = 154
Hope this helped!