Question
There were some yellow, white and pink files in a box. 111 of the files were white. The ratio of the number of yellow files to the number of pink files was 3 : 7. There were 318 fewer white files than pink files.
  1. Find the ratio of the number of yellow files to the number of white files to the number of pink files in the box.
  2. How many pink files were there?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

There were some yellow, white and pink files in a box. 111 of the files were white. The ratio of the number of yellow files to the number of pink files was 3 : 7. There were 318 fewer white files than pink files.
  1. Find the ratio of the number of yellow files to the number of white files to the number of pink files in the box.
  2. How many pink files were there?