during cooking, a chicken loses ten percent of its weight due to water loss. In order to obtain 1,170 grams of cooked chicken, how many grams of uncooked chicken must be used.

Let x be the weight of the uncooked chicken.

After cooking, the chicken will be left with 90% of its original weight, since it loses 10% of its weight due to water loss.

So, 0.90x = 1,170 grams

Solving for x:

x = 1,170 / 0.90
x = 1,300 grams

Therefore, 1,300 grams of uncooked chicken must be used to obtain 1,170 grams of cooked chicken.