150 pounds divided into 4:1 ratio means that there are 4+1 = 5 portions. one quantity is 4 times the amount of the other quantity. 150 can be divided into 5 portions, therefore 1 portion is =150/5 = 30 First quantity is 4 times the amount of one portion = 4*30 = 120 and other portion is 30 therefore quantities are divided as 120:30
