Question:
Lisa, Meng and Nin shared some stickers. Lisa had 20% of the stickers. Meng had 66 stickers and Lisa had 12 more stickers than Nin.
(a) What was the total number of stickers shared among the three children?
(b) Lisa bought some more stickers. The total number of stickers increased by 10%. What was the ratio of the number of Lisa’s stickers to the total number of stickers that the three children had in the end?
Leave your answer in the simplest form.