In which of the following tables a and b...

In which of the following tables a and b vary inversely: (i) a ` 8 16 32 256` `\ ` b ` 32 16 8 1` (ii) a ` 9 18 2 12` b ` 8 4 30 6` (iii) a, ` 2, 16, 8, 4` b, `40, 5, 10, 20`

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