Question

A and B can mow a land in9 whole 9 upon 10 days.A can alone mow the land in 22 days.how many days will B alone take​

Answer 1

Answer:

B alone will do it in 18 days

Step-by-step explanation:

Work done by A in a day =1/A=1/22

Work done by B in a day=1/B=?

Work done by A and B in a day is 10/99

ie :

1/A+1/B=10/99

1/22 +1/B =10/99

1/B= 10/99-1/22

1/B = (20-9)/198

1/B= 11/198

1/B=1/18

B=18

B alone takes 18 days to mow the land

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