A 9x13" cake will feed about 45 people (assuming that the cake has two layers, each layer is about 2" in height, and the slices are 1.5x2" in size).
2 average sized (13x19x2, or so)sheet cakes will not feed 200 people.
Most store bought cake mixes give you the option of using 2 round (8 or 9 in) cake pans or a single 9X13 in cake pan. The baking times will differ, but you will get the same delicious results.
You can figure it out exactly by filling a 9 in cake pan with water and then putting in the cake pan you think might be it (do this 3 times). I'm guessing a deep 9x13 pan. A cake mix usually makes 2 9in cakes, or one 9x13. Hope this is helpful
It depends on how large the cake is.
If it is a side dish, 6 -8 people could get a small serving.
There are approximately 60 servings in an 11 x 14 cake.
Most cake mixes are for a 9x13 pan which is 117 sq. inches. 12x12 is 144 sq. inches. 1 mix would be enough and shorten the cooking time by 5 to 8 minutes.
It depends on the cake. A 2 kilogram chocolate cake with no frosting would be a different volume than a 2 kilogram cheesecake.
When baking two boxes of cake mix in a 9x13 inch pan, you will need to adjust the baking time and temperature accordingly. Typically, you would bake a single box of cake mix in a 9x13 inch pan at 350°F for 30-35 minutes. Since you are doubling the recipe, you may need to increase the baking time by 10-15 minutes, but it's essential to monitor the cake closely towards the end of the original baking time to prevent over-baking. Use a toothpick inserted into the center of the cake to check for doneness - if it comes out clean, the cake is ready.
For a 12x12x2-inch cake pan, you typically need about 1.5 to 2 standard cake mixes, depending on the brand and recipe. A standard cake mix usually yields enough batter for a 9x13-inch pan, which is smaller than your 12x12 pan. To ensure you have enough batter, consider using two mixes or adjusting the recipe accordingly.
100,000,000,000,000,000,000 because of the crumbs!!
A 12" x 18" cake pan will make 72 servings.