Elida has 5 letters while Adrianna has 2 less than twice the number of letters Elida has. What's 10 times the average number of letters in both names?
Solve this problem. 
Twice the number of letters Elida has is 2*5=10
2 less than twice the number of letters Elida has is 10-2=8
The total number of letter in both names is 8+5=13
The average number of letters in the name Elida and Adrianna is 13/2=6.5
10 times the average number of letters in both names is 10*6.5 = 65