Question

Out of 200 kids, 100 had a T-Rex, 70 had iPads and 140 had a cell phone. 40 of them had both, a T-Rex and a iPad, 30 had both, a iPad and a cell phone and 60 had both, a T-Rex and cell phone and 10 had all three. How many kids had none of the three?

Answer 1

Answer:

10

Step-by-step explanation: