CAYLEY 2014 Problem 18

At the post office, Sonita bought some 2 ¢ stamps and she bought ten times as many stamps as 2 ¢ stamps. She also bought some stamps. She did not buy any other stamps. The total value of the stamps that she bought was 100¢. How many stamps did Sonita buy in total?

Answer Choices
A. 66
B. 30
C. 44
D. 63
E. 62