Question
Xavier, Mark and Fabian had some stamps in the ratio of 4 : 5 : 9. Fabian gave 50% of his stamps to Xavier and Mark. As a result, Xavier had the same number of stamps as Mark and Fabian had 36 fewer stamps than Xavier.
  1. What was the percentage increase in Xavier's stamps after receiving from Fabian?
  2. How many stamps did Mark have at first?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Xavier, Mark and Fabian had some stamps in the ratio of 4 : 5 : 9. Fabian gave 50% of his stamps to Xavier and Mark. As a result, Xavier had the same number of stamps as Mark and Fabian had 36 fewer stamps than Xavier.
  1. What was the percentage increase in Xavier's stamps after receiving from Fabian?
  2. How many stamps did Mark have at first?