the mean of eight number is 35 if a number is excluded then the mean is reduced by 3 find the excluded number
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Let x be the total numbers
X/8 = 35
X = 35 * 8 = 280
If the mean gets reduced by 3 , then
280-x / 7 = 35-3
280 - x /7 = 32
280 - x = 224
X = 56
X/8 = 35
X = 35 * 8 = 280
If the mean gets reduced by 3 , then
280-x / 7 = 35-3
280 - x /7 = 32
280 - x = 224
X = 56
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