The average of first 20 results is 20
Asked by admin @ in Math viewed by 286 People
The average of first 20 results is 20. and that of next 30 results is 30. What is the average of all 50
results?
Answered by admin @
Answer:
the average of all 50 = 20 + 30 / 2
= 50 / 2
= 25
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