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Help me out! it's urgent plz do sum no.11 plz ​

Answer»

Work that A and B can together do in 1 day = 1/20

Work that B can alone do in ONE day = 1/60

Then the work A can do in one day = 1/20 - 1/60 = 1/30

Hence, no. of days required by A to do the work = 30 days

HOPE THIS COULD HELP!!!



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