Answer:
This is not possible.
Step-by-step explanation:
The given series is : 2 , 6, 10, 14, 18, 22, 26, 30, 34, 38, 42, 46, 50, 54, 58
Now, adding any three numbers to get 60, is not possible.
The numbers are in the form
where n is a positive integer.
Summing together three such numbers you get 
(N = n1 + n2 + n3, ...)
We want to get 
=> 
=> 
Hence, it is not possible.