Average of 10 number is 15. Average of first six number is 20 and that of least five number is 18. What is the sixth number?

Average of 10 number is 15. Average of first six number is 20 and that

1.	Average of 10 number is 15. Average of first six number is 20 and that of least five number is 18. What is the sixth number?
A.	60
B.	70
C.	50
D.	85
Answer» B. 70

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Average of 10 number is 15. Average of first six number is 20 and that of least five number is 18. What is the sixth number?

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