10 people can build a wall in 12 days. Six people, each only half as efficient as those in the first group, will be able to complete 3/5 of such a wall in
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Answer:
24
Step-by-step explanation:
10 people in 1 day = 1/12
1 people in 1 day = 1/120
1 people with half of efficiency in 1 day = 1/120*1/2 = 1/240
6 people in 1 day = 1/240*6 = 1/40
6 people whole work = 40 day
3/5 of whole work = 40*3/5 = 24 days
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