fedlund75 fedlund75

27-01-2018
Mathematics

contestada

132 books are printed in 2 hours, 264 books are printed in 4 hours, and 528 books in 8 hours, how many books are printed in 3 hours, 7 hours, and 15 hours?

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kenadi2023 kenadi2023

27-01-2018

so the unit rate is 66:1
then you do 66*3=198
198:3
then you do the same thing 66*7=462
462:7
lastly you do 66*15=990
990:15

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