How many kilos of rice to feed 400 people?

To calculate the amount of rice needed to feed 400 people, several factors need to be considered, including the average serving size, the type of rice, and any additional ingredients or dishes that may be served alongside the rice. Here's a general guideline to estimate the amount of rice required:

1. Serving Size: A standard serving size of cooked rice per person is generally considered to be around 1/2 cup to 1 cup (45-90 grams). For simplicity, let's assume an average serving size of 1 cup per person.

2. Rice Type: Different types of rice, such as long-grain, short-grain, or basmati, may vary slightly in their cooking ratios. For this estimation, let's assume that the rice is cooked at a ratio of 1:2 (1 part rice to 2 parts water).

3. Additional Ingredients: If the rice is being served as a main dish, you may want to consider adding additional ingredients like vegetables, meat, or sauces, which can affect the overall quantity of rice needed.

4. Leftover Factor: It's always a good idea to have some leftover rice to account for any variation in serving sizes or unexpected guests. Adding an extra 10%-15% to your calculation will help ensure that you have enough rice.

Based on these factors and assumptions:

- 400 people x 1 cup serving size per person = 400 cups of cooked rice

- Since the rice is cooked at a ratio of 1:2, 400 cups of cooked rice will require 400 x 2 / 2 cups of uncooked rice = 400 cups of uncooked rice

- Adding 15% extra for leftovers: 400 cups x 115% = 460 cups of uncooked rice

- Considering 1 cup of uncooked rice to weigh approximately 175 grams, the total amount of uncooked rice needed would be:

460 cups x 175 grams / cup ≈ 80,500 grams

Therefore, you will need approximately 80.5 kilograms (kg) of uncooked rice to feed 400 people. This estimation can serve as a starting point, but it's always advisable to adjust the quantity based on the specific preferences and serving sizes of your guests.