Question

Both $x$ and $y$ very inversely with each other. When $x$ is $10$, $y$ is $16$, which of the following is not a possible pair of corresponding values of $x$ and $y$?

• A. $12$ and $5$
• B. $15$ and $4$
• C. $25$ and $2.4$
• D. $45$ and $1.3$

Answer 1

The correct option is D $45$ and $1.3$

For inversly $x\times y=k\left(constantt\right)$
If $x=10$ and $y=6$
$xy=10\times 6=60$
Option $a=12\times 5=60$
Option $b=15\times 4=60$
Option $c=25\times 2.4=60$
Option $d=45\times 1.3=58.3$
Option $d$ is correct.