the same time as baking 1 potato if your oven is large enough
About an hour to an hour and a half.
Potatoes are relatively quick to cook when they are cut up into smaller pieces. A regular sized potato takes about 40 minutes to bake.
No matter how many potatoes you bake - set the oven at 350 degrees and bake them for one hour. Larger potatoes may take longer. Always prick, pierce or cut a potato before baking as they can explode and make a mess of the oven, if the skin is unbroken and the steam cannot escape.
depends on what you are trying to bake and what temperature the oven is set to
depends on the size - about an hour at 350 - bake it on foil because sugars will ooze out and are very hard to clean up
To make them like baked potatoes, do approx. 1 hour. If you are doing them in a baking dish, slice them first. Then put in shallow baking dish for 30-45 minutes.
If you bake them in an oven at 400 degrees, it takes 45 minutes to one hour. In a microwave, it takes about 7 minutes. In a toaster oven, it would take 20 minutes.
It will take about 2 to 2.5 hours. For a large potato at 350 it takes an hour so at 250 it will take longer. I bake mine at 450 for an hour and it comes out with a crispy skin and fluffy inside. I butter the outside of the potato before I bake it to get a crispy skin on it.
About twenty minutes in the oven.
20 minutes
yes!
a long time about a million and a quarter years
This will depend on the size of the potatoes and the heat of the oven. If you want to bake potatoes in their jackets a useful technique is to push a metal knife (It must be completely metal like a stainless steel dining knife with no bone or plastic handles) or metal skewer right through or at least into the middle of each potato - the metal will conduct the heat into the centre of the potato and this will reduce the cooking time. If the potatoes are large you may want to halve or quarter them and place them on a baking tray. Peeling the potatoes and cutting them into smaller portions will also reduce baking time. If you pack them close together they will take longer to cook, so space them out. Generally about 30 - 40 minutes in a moderate oven should be enough to bake a medium sized potato. Unless you have a small oven, or are baking something else in the oven at the same time, it is not a cost effective way of cooking potatoes.