incorrect records from two tables using join

I have two tables 

first table

QuestionTarget whose columns are

(

)

second Table AnswersNew(

)

Now listen me In my first table i am saving the Target value for question and when i insert one row in first table the second table should contain 16 rows for one row in first table so if i insert four rows in first table then in second table there would be 16*4 Rows , Now i want to calculate the sum of a column from second table and the issue is that when i used inner join it takes value from first table for all 16 rows and make a total of it weather it must take one value because against one record there are 16 records in second table so inner join gives values to all 16 rows