when 6 is added to half of one - third of one - fifth of a number , the result is one - fifteenth of the number . find the number ?
"explanation : let the number be 26 + 1 / 2 [ 1 / 3 ( a / 5 ) ] = a / 15 = > 6 = a / 30 = > a = 180 answer : b"
divide(const_3.0, divide(divide(const_1, multiply(const_3, add(const_2, 6))), const_2))