window washer spends 6 minutes for cleaning 8 windows. How long will it take him to clean 28 windows?
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3
Answer:
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Step-by-step explanation:
All things being equal, that should be 21 minutes.
Looking at proportion,
If it takes 6 mins for 8 windows
It will take x mins for 28 windows
So,
Answered by
2
Answer:
8 windows—>6 mins
4 windows—>6 mins divide by 2
= 3 mins
28 windows—>3 mins times 7
= 21 mins
Step-by-step explanation:
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