Find out the missing word:
If they know the cause of the problem, they might be able to figure how to prevent it from happening again.

• উল্লিখিত বাক্যের missing word টি হচ্ছে out.
- Complete Sentence: If they know the cause of the problem, they might be able to figure out how to prevent it from happening again.

• Figure out how/why/what, etc.
English Meaning: to understand or solve something:
Bangla Meaning: কোন কিছু বুঝতে পারা বা সমাধান করা।

Example: 
It takes most people some time to figure out new software.

Source: Cambridge Dictionary.