The average marks obtained by 7 students in a group is 226. If the marks obtained by
six of them are 340, 180, 260, 56, 275 and 307 respectively, find the marks obtained
by the seventh student.
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Step-by-step explanation:
Mean marks obtained by 7 students =226.
Total marks obtained by 7 student=226x7=1582
Total marks obtained by 6 students=340+180+260+56+275+307=1418
marks obtained by seventh =1582-1418=164
Hence,the marks obtained by seventh is 164.
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