Answer:
You are expecting 72 people.
You have rented 72 chairs.
EQUAL DECORATION IN ALL TABLES.
48 balloons, 24 flowers, 32 candles
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Greatest common divisor of 72, 48, 24, 32 = 8
72/2 = 36 --> 36/2 = 18 --> 18/2 = 9 --> 9/3 = 3
48/2 = 24 --> 24/2 = 12 --> 12/2 = 6 --> 6/2 = 3
32/2 = 16 --> 16/2 = 8 --> 8/2 = 4 --> 4/2 = 2
24/2 = 12 --> 12/2 = 6 --> 6/2 = 3
After factorizing each number, you see that ALL of them can be divided by 2³ = 8
So, 8 identical tables can be made.
