If on increasing $a$ , $b$ decreases in such a manner that $a b$ remains _______ and positive, then $a$ and $b$ are said to vary inversely with each other.

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Solution

Use the concept of Inverse Proportion.
If $a$ and $b$ are said to vary inversely with each other, then on increasing one quantity will leads to decrease in other quantity.
And the product of both the numbers remains same.
$i . e . a b = c o n s \tan t = k o r a = \frac{k}{b}$
Hence, If on increasing $a$ , $b$ decreases in such a manner that $a b$ remains same and positive, then $a$ and $b$ are said to vary inversely with each other.

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If on increasing a, b decreases in such a manner that ab remains _______ and positive, then a and b are said to vary inversely with each other.

If on increasing $a$ , $b$ decreases in such a manner that $a b$ remains _______ and positive, then $a$ and $b$ are said to vary inversely with each other.