if x , y , and z are positive integers , and 4 x = 5 y = 6 z , then the least possible value of x + y + z is
take lcm of 4,5 and 6 = 60 now 4 x = 60 = > x = 15 5 y = 60 = > y = 12 6 z = 60 = > z = 10 115 + 12 + 10 = 37 . option c .
add(add(divide(divide(multiply(multiply(4, 5), 6), const_2), 4), divide(divide(multiply(multiply(4, 5), 6), const_2), 5)), divide(divide(multiply(multiply(4, 5), 6), const_2), 6))