find the sum of 12 number whese mean is 11
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sum of 12 no. whose mean is 11 ==>
1st + 2nd ..........12th / 12 = 11
1st +2nd.........12th = 11 × 12
sum of 12 no. = 132
1st + 2nd ..........12th / 12 = 11
1st +2nd.........12th = 11 × 12
sum of 12 no. = 132
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