INO T.LTThe combined mean of three groups is 12and the combined mean of first two groups is3.if the first, second and third groups have 2,3& 5 items respectively, then the mean ofthird group is(MQB)b) 21 c) 12 d) 13a) 10

INO T.LTThe combined mean of three groups is 12and the combined mean

1.	INO T.LTThe combined mean of three groups is 12and the combined mean of first two groups is3.if the first, second and third groups have 2,3& 5 items respectively, then the mean ofthird group is(MQB)b) 21 c) 12 d) 13a) 10
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INO T.LTThe combined mean of three groups is 12and the combined mean of first two groups is3.if the first, second and third groups have 2,3& 5 items respectively, then the mean ofthird group is(MQB)b) 21 c) 12 d) 13a) 10​

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INO T.LTThe combined mean of three groups is 12and the combined mean of first two groups is3.if the first, second and third groups have 2,3& 5 items respectively, then the mean ofthird group is(MQB)b) 21 c) 12 d) 13a) 10