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In a examination , the number of those w...

In a examination , the number of those who passed and the number of those who faild were in the ratio `25:4` .If five more had appeared and the number of failures were 2 less than earlier , the ratio of students who failed would have been `22:3` . Find the total number who appeared at the examination .

A

145

B

150

C

155

D

180

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