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 ?
"d 60 let the number be 2 + 1 / 2 [ 1 / 3 ( a / 5 ) ] = a / 15 = > 2 = a / 30 = > a = 60"
divide(2, divide(divide(const_1, multiply(2, add(const_2, 2))), const_2))