When 2 is added to half of one-third of one-fifth of a number, the result is one-fifteenth of the number. Find the number?
A. 40
B. 50
C. 60
D. 70
E. None of these
Explanation:
Let the number be
2 + 1/2[1/3(a/5)] = a/15
=> 2 = a/30 => a = 60