Question

Convert $(4210{)}_5$ to base $10$

Answer 1

$125$	$25$	$5$	$1$
$4$	$2$	$1$	$0$
$4\times 125$	$25\times 2$	$4\times 5$	$1\times 0$

The number in decimal form will be $4\times 125+25\times 2+1\times 5+1\times 0=500+50+5=555$

So correct answer will be $555$