The average of 8 numbers is 20. the average of first two numbers is 31 – McqOptions

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1.	The average of 8 numbers is 20. the average of first two numbers is 31/2 and that of the next three is 64/3. if the sixth number be less than the seventh and eighth number by 4 and 7 respectively then the eighth number is:
A.	25
B.	18
C.	27
D.	22
Answer» B. 18

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