A certain number of students from school X appeared in an examination and 20% students failed. From school Y, 130% more students than that from school X, appeared in the same examination. If 90% of the total number of students appeared from from both the schools passed, then what is the percentage of students from school Y whofailed (correct to one decimal place)?

A

6.4%

B

10%

C

5.7%

D

8.3%