Total balls in the two containers that are defective = 50
Given,
The balls in first container = 80
The balls in second container = 90
Defective balls in 1 container = 40% of 80
= 40 / 100 × 80
= 32
Defective balls in 2 container = 20% of 90
= 20 / 100 × 90
= 18
Now, the total numbers defective balls = 32 + 18
= 50
Therefore, there are 50 defective balls in total.
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