12th maths written exam should be of 70 marks with 30 marks practical to reduce burden.

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Students are taking mathematics as burden. It's a bit uneven that maths practical and project not considered for marking but biology , physics , chemistry , physical education & even painting count up practical and project portion... It's unfair. Students don't know about history of indian mathematics and losing interest. This can be considered for project purpose. It otherwise would be  unfair division of marks and subject as well.