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[" The mean of 100items is "49" .It was discovered that three items which should have been "60,70,80],[" were wrongly read as "40,20,50" respectively.The correct trean is "],[[" (A) "48," (B) "82.5," AC "50," (D) "80]]

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Mean of 100 items is 49. It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50 respectively. The correct mean is :

Mean of 100 items is 49. It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50 respectively.The correct mean is

Mean of 100 items is 49. It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50 respectively.The correct mean is

Mean of 100 items is 49. It was discovered that three items which should have been 60,70,80 were wrongly read as 40,20,50 respectively.The correct mean is.(a) 48 (b) 82(1)/(2) (c) 50 (d) 80

Mean of 100 items is 49. It was discovered that three items which should have been 60, 70,80 were wrongly read as 40, 20, 50 respectively. The correct mean is. (a) 48 (b) 82 1/2 (c) 50 (d) 80

Mean of 100 items is 49. It was discovered that three items which should have been 60, 70,80 were wrongly read as 40, 20, 50 respectively. The correct mean is. (a) 48 (b) 82 1/2 (c) 50 (d) 80

Mean of 100 items is 49. It was discovered that three items which should have been 60, 70,80 were wrongly read as 40, 20, 50 respectively. The correct mean is. (a) 48 (b) 82 1/2 (c) 50 (d) 80