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Amar wrote exams in four subjects - Math...

Amar wrote exams in four subjects - Maths, Science, Hindi and Social Studies. The ratio of marks he got in these exams was `2:3:4:5`. He got an aggregate of 70% in these exams. Each exam had the same maximum marks. In how many of these subjects did he get more than 50%?

A

1

B

2

C

3

D

4

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