Jim bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Jim. Jim ate 12 sweets and Ken ate 18 chocolates. The ratio of Jim’s sweets to chocolates became 1:7 and the ratio of Ken’s sweets to chocolates became 1:4. How many sweets did Ken buy?
this question sure gave me a hard time

too confusing
cant think
probably cause my wisdom tooth is gone
no wisdom anymore
im sure if i when i was pri6 i know how to solve it
LOL~