A typical car battery is rated at 120 Ampere-hours. How long will the battery last if it is made to?

A typical car battery is rated at 120 Ampere-hours. How long will the battery last if it is made to power a device that uses a current of 2.5 Amperes?|||As far as i can remember of what i have learnt in the school around a quarter century ago: 120 Ampere-hours / 2.5 Amperes = 48 Hours|||The question is a big help with answering this. You're asked how long the batter will last (i.e. how many hours). You've been given Ampere-hours (120) and the usage in Ampere (2.5). By dividing Ampere-hours by Ampere you're left with ampere. Therefore 120ampere-hours/2.5ampere = 48hours. Check the units when doing calculations.|||Ampere hours divided by Ampere will give hours.|||Things have not changed apparently since half a century ago. It is still 120/2.5 = 48 hours