What's the next number in this sequence, and what is the pattern behind this Brain Game?

2, 6, 10, 11, 15, 20, 26, 30, 35, ?

Here is the SOLUTION.

THE SOLUTION:

50. The numbers represent the increasing value of any TWO U.S. COINS:

2 = two pennies
6 = penny, nickel
10 = two nickels
11 = penny, dime
15 = nickel, dime
20 = two dimes
26 = penny, quarter
30 = nickel, quarter
35 = dime, quarter
so...
50 = two quarters