The easiest way is to try one yourself. If you don't want to taste it, you can also try to look outside the noodles. Usually cooked noodles are bright white, uncooked noodles are generally gray, and cooked noodles have something similar to a white core in the middle.
Noodles can usually be cooked in a few minutes, but it takes almost three minutes if there is no accident. Nowadays, noodles are almost indispensable food in our life. Many people may eat noodles more often than rice, especially those who like to stay at home, so it is very useful to know how long it takes to cook noodles.