To complete a work, a takes 50% more time than b. If together they take 18 days to complete the work, how much time shall b take to do it by lcm method
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a=2b
a+b=18days
2b+b=18
3b=18
b=18/3
b=6
b takes 6 days to complete work alone
a=2b
=2*6
=12
b takes 12 days to complete work alone
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