Answer :
After two hours the prices will meet a 760
$550+105=655 |655+105= 760
660+50= 710 |710+50= 760
They meet in the second hour so in the second hour they will charge the same.
$550+105=655 |655+105= 760
660+50= 710 |710+50= 760
They meet in the second hour so in the second hour they will charge the same.