Question:In an examination, there are `3` papers of Mathematics of `100` marks each. A boy secures `60%` in the first paper and `70%` in the second paper. In order to secure `705` in the aggregate the percentage of marks he should secure in third paper will be : 

A `90%` 
B `80%` 
C `75%` 
D `70%` 

+ Answer
B 

+ Explanation
`60 + 70 + x`

`= 70/100 xx 300 or x`

`= 80%`

+ Report

Irin Moni

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