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Byju's Answer
Standard VIII
Mathematics
Average
If the mean o...
Question
If the mean of 9 numbers is 45 , then find the sum of all numbers.
A
305
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B
405
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C
505
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D
605
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Solution
The correct option is
B
405
A
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45 =
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9
∴
Sum of all numbers = 45
×
9 = 405.
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