Question

If x and y vary inversely as each other, and x = 10 when y=6 find y when x=15​

Answer 1

$Since \:  x  \: and \:  y \:  vary \: \\ inversely \: as \: each \: other, \\ \: therefore \: the \: product  \: xy  \: \\ always \: remains \: constant.  \</p><p></p><p>10×6=15×y \\ </p><p>⇒60=15y \\ </p><p>⇒y=1560</p><p>⇒y=4</p><p>$