Question

After travelling a distance of 45km .aryan found that 3/8 of his journey was still left what was the length of his whole journey

Answer 1

$\frac{3}{8}x+45=x$
$x- \frac{3}{8}x=45$
$\frac{8x-3x}{8} =45$
$5x=360$
x=72km