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The average of 30 numbers is 40 and that of other 40 numbers is 30. The average of all the numbers is
5Q:
The average of 30 numbers is 40 and that of other 40 numbers is 30. The average of all the numbers is
- 133false
- 234.5false
- 3$$34{2\over7}$$true
- 435false
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