This is the 1116th most frequent Russian word.
удастся
"Удастся" means "will manage to" or "will succeed in."
In this sentence, 'удастся' signifies a successful outcome of an attempt or action.
Если она постарается, ей обязательно удастся сдать экзамен.
If she tries hard, she will definitely succeed in passing the exam.
Here, 'удастся' expresses the ability or failure to accomplish something due to circumstances.
Мне не удастся посетить встречу завтра из-за срочных дел.
I will not be able to attend the meeting tomorrow due to urgent matters.
'Удалось' in this context describes a fortuitous success of a collective effort.