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There were several pelicans basking in the sun. 2/5 of the pelicans were brown, and the rest were white. After some of the brown pelicans flew away, only 3/10 of the remaining pelicans were brown. After some of the white pelicans flew away, the fraction of the pelicans that were white turned to 2/3. If the difference between the number of brown pelicans that flew away and the number of white pelicans that flew away was 18, how many brown pelicans were basking in the sun originally?
Ans: 126
There were several pelicans basking in the sun. 3/7 of the pelicans were brown, and the rest were white. After some of the brown pelicans flew away, only 4/13 of the remaining pelicans were brown. After some of the white pelicans flew away, the fraction of the pelicans that were white turned to 2/3. If the difference between the number of brown pelicans that flew away and the number of white pelicans that flew away was 84, how many brown pelicans were basking in the sun originally?
Ans: 324
There were several pelicans basking in the sun. 4/9 of the pelicans were brown, and the rest were white. After some of the brown pelicans flew away, only 5/16 of the remaining pelicans were brown. After some of the white pelicans flew away, the fraction of the pelicans that were white turned to 2/3. If the difference between the number of brown pelicans that flew away and the number of white pelicans that flew away was 210, how many brown pelicans were basking in the sun originally?
Ans: 660
