This is the 19509th most frequent Korean word.
양만큼의
"As much as the quantity of."
양만큼의 is used here to specify the exact amount (water) required, emphasizing adequacy for a purpose.
나는 필요한 양만큼의 물을 따랐다.
I poured as much water as needed.
양만큼의 describes the necessary number (problems) to be solved, focusing on adequacy for requirement.
우리는 양만큼의 문제를 해결하려 한다.
We are trying to solve the required amount of problems.
양만큼의 refers to the adequate effort required in the context, highlighting the effort relative to the goal.