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Homework 12.1

HOMEWORK 12.1Find the average of each of the following:1) 2, 3 and 4 2) 5, 9,. 7, and 8 3) 4, 8, 3, 6, 5 , 1 and 2 4) 10, 15,25, 20 and 30 5) 100, 56, and 12 6) 189, 234, 312 and 300 7) 222 and 450 8) 15, 97, 79 and 81 9) 1004, 2033, and 6175 10)10, 15,25, 20 and 30 11) Five pupils had a total height of 640 cm. If three of them had a total height of 380 cm, what was the average height of the remaining two pupils? 12) A farmer collected milk from 4 different cows in one week, as follows: The first cow produced 127 litres, the second cow 143 litres, the third cow 132 litres and the fourth cow 138 litres. Find the average number of litres per cow. 13) The average weight of 9 rice bags is 78 kg. What was their total weight? 14)In constructing 7 classrooms, 224 cement bags are needed. If four classes have consumed 128 bags of cement, what is the average requirements of the three remaining classes? 15) A doctor attended 476 patients in one week. What was the average number of patients he could attend per day? Prepared and Added by:
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