find the average of 6 whole 2 upon 5 , 5 whole 3 upon 10 ,4 whole 1 upon 5 and 7 whole 7 upon 10
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Sum = 6(2/5) + 5(3/10) + 4(1/5) + 7(7/10)
=(30+2)/5 + (50+3)/10 + (20+1)/5 + (70+7). 10
= 32/5 + 53/10 + 21/5 + 77/10
= 6.4 + 5.3 + 4.2 + 7.7
= 23.6
Total number = 4
Hence,
Average = 23.6/4 = 5.9
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