In a class test, 30% of the students wrote their solutions in Marathi and the others in English. The Average marks of the students who wrote in Marathi is 64 and the average marks of the students who wrote in English is 68. Find the average marks of all students?
1) 66.80
2) 66
3) 67
4) 67.80

Submitted by: Murtaza
1) 66.80
Submitted by: Murtaza

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