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画师画顺福州国帅尼加 思 | |如图強三Question 5 of 30国画国画 国画山The average weight of a group of 15 workers was 40kg which increased by 4kg when three new workers joined the group. What is the averageweight of the three new workers who joined the group?​

Answer»

15=4015=40×415=160=160/15=2400



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