convert into hours 21 days 28 hours
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Answered by
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504 hours
In 21 d there are 504 h . Which is the same to say that 21 days is 504 hours.
Answered by
1
Answer:
1 day -24 hours
21days - ?
(cross multiply )
24 × 21 = 504
504 + 28 = 532 hours for 21 days 28 hours
thank you hope this answer is helpful to you
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