Ratio P6

Ali, Bill and Cindy had a total of 450 apples. The ratio of the number of apples Bill had to the number of apples that Cindy had was 2 : 5. After Ali and Bill had given away ½ of their apples, the children had 300 apples left. How many apples did Bill have at first?

A [  ][  ]                  ]

B [][][][]                 ]  450

C [][][][][][][][][][]  ]

A [  ]                      ]

B [][]                      ]  300

C [][][][][][][][][][]  ]

300 x 2 = 600

10 u --> 600 - 450 = 150

4 u  -->  4/10  x 150  =  60 apples

Bill had  60 apples  at first.