How many people had all four items?

Question

Out of 100 people surveyed, 75 percent had a personal computer, 68 percent had a dishwater, 85 percent had a refrigerator and 80 percent had a video recorder.
How many people had all four items?

Comments

Pl tell the correct Answer

Answer 1

34 people

---

100*0.75*0.85*0.68*0.8= 34

Answer 2

For 8 people, the logic is :
(Is my logic OK ?)

Out of 100 people,
-25 did not have PC,
-32 did not have DW
-15 did not have fridge
-20 did not have VC
Hence number of people having all the four are

---

But is there a loophole in above.
Numbers can not be added as some could be common, but not have 2 or 3 or any of the items.
If you go by probability theory then the answer is 34.68%