Correct
解题
/ jiětí /
Strokes
Definition
to solve problems/to explicate
Example
As a Verb
solve a (mathematical, etc) problem
1
Zhè
这
dào
道
shùxuétí
数学题
nǐ
你
shì
是
zěnme
怎么
xiè
解
de
的
?
How did you solve the math problem?
2
Xiè
解
nántí
难题
solve/undo a puzzle
As a Noun
［often used in book titles］ explanatory remarks (on the author, content, etc of a book or article); introductory note