Answers

2014-05-07T20:12:34+05:30
We take third of  56 and we take one twelfth of 56 the we add the third of 56 and one twelfth 56 and divide by 2 
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2014-05-12T12:59:51+05:30
1/3of 56 is 18.66
and 1/4 of 56 is 13 
and the average is 18.83 which is =19.
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