Using units and parts,AshleyL wrote:Hi! Can anyone help with this please?

Jim bought some chocolates and gave half of them to Ken.

Ken bought some sweets and gave half of them to Jim.

Jim ate 12 sweets and Ken ate 18 chocolates.

After that, the number of sweets and chocolates Jim had were in the ratio 1:7 and the number of sweets and chocolates Ken had were in the ratio 1:4.

How many sweets did Ken buy?

Thanks!!

Chocolates :

Jim : 10u - 5u = 5u

Ken : 5u

Sweets :

Ken : 10p - 5p = 5p

Jim : 5p

For Jim :

5p - 12/5u = 1/7

35p - 84 -------- 5u

For Ken :

5p/5u - 18 = 1/4

20p ------- 5u - 18

20p ------- 35p - 84 - 18

15p ------- 102

1p -------- 102/15 = 6.8

10p ------- 6.8 x 10 = 68

Ans : 68 sweets.