Question
There were some pink, purple and grey pencils in a box. 213 of the pencils were purple. The ratio of the number of pink pencils to the number of grey pencils was 4 : 7. There were 340 fewer purple pencils than grey pencils.
  1. Find the ratio of the number of pink pencils to the number of purple pencils to the number of grey pencils in the box.
  2. How many grey pencils 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 pink, purple and grey pencils in a box. 213 of the pencils were purple. The ratio of the number of pink pencils to the number of grey pencils was 4 : 7. There were 340 fewer purple pencils than grey pencils.
  1. Find the ratio of the number of pink pencils to the number of purple pencils to the number of grey pencils in the box.
  2. How many grey pencils were there?