3 workers can do a job in 28 hours. How many more workers are needed to do this job in 12 hours?
2 answers:
Answer
4
Step-by-step explanation:
3/28=x/12
that is 7 and you need to find how many more workers so you subtract
7-3=4
Answer:
7 workers
Step-by-step explanation:
cross multiply and it becomes
12x = 3x28
12x = 84
x = 84/12
x = 7 workers
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