the average of 9 numbers is 30 the average of first 5 numbers is 25 an | Examsbook

398

Q:
The average of 9 numbers is 30. The average of first 5 numbers is 25 and that of the last 3 numbers is 35. What is the 6th number?

1
40
2
50
3
20
4
30

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Answer : 1. "40 "

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