Question

$6$ bowls cost $Rs.90$. What would be the cost of $10$ such bowls?

Answer 1

Cost of $6$ bowls $=Rs.90$
Let cost of $10$ bowls $=Rs.x$
$6:10=90:x$
$\Rightarrow 6\times x=10\times 90(ad=bc)$
$x=Rs.150$
Cost of $10$ bowls $=Rs.150$