if x / 2 = y / 4 = z / 6 , then find the value of ( x + y + z ) / z
explanation : x / 2 = y / 4 = z / 6 = k , then x = 2 k , y = 4 k and z = 6 k . now , ( x + y + z ) / z = ( 2 k + 4 k + 6 k ) / 6 k = 12 k / 6 k = 2 answer : option e
add(add(const_1, divide(2, 6)), divide(2, const_3))