There are 50 numbers. Each number is subtracted from 53 and the mean of the numbers so obtained is found to be –3.5. What is the mean of given numbers?
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let mean = x
Total = 50x
(50x - 53 x 50) /50 = -3.5
x - 53 = -3.5
x = 56.5
Total = 50x
(50x - 53 x 50) /50 = -3.5
x - 53 = -3.5
x = 56.5
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