the average marks obtained by 10 students are 59 if average of first six students is 57 what is the average of marks obtained by last four students?
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Answer:
62
Step-by-step explanation:
Sum of marks of 10 students =10×59=590
Sum of marks of 1st 6 students =6×57=342
Sum of marks of last 4 students = 590-342=248
∴ Average of marks of last 4 students = 248÷4 = 62
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