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N= figure number
Number of table = N×N
Number of chair = N×4
So when figure number is 39
Number of table = 39×39=1521
Number of chair = 39×4 = 156
Number of table = N×N
Number of chair = N×4
So when figure number is 39
Number of table = 39×39=1521
Number of chair = 39×4 = 156
Thank you so much