Vikas gave 3 examinations. The respective ratio of marks scored by him in the 3 examinations is 3 ∶ 5 ∶ 6. The respective ratio of maximum marks of the 3 examination is 7 ∶ 11 ∶ 10. If he scored 50 percent marks in total, then in how many examination has he scored marks more than 50 percent?
1
None
2
1
3
3
4
2