Answer :
Answer:
120
Step-by-step explanation:
All of their names add up to 20 names,
6 balloons (b) = 1 hand (h)
Double b = 2h (6 x 2 = 12 per person)
20 x 12 = 240
3 balloons (b) flew away from each hand (h)
b x h = 6 (3 x 2 = 6 flew away per person)
6 x 20 = 120