A and b takes 6 hours and 9 hours respectively to conpletr a work. a work for 1 hour and then b works for two hours how much work is done in these 3 hours
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A 's 1 hour work = 1/6
B's 1 hour work = 1/9
B's 2 hour work = 2/9
Therefore portion of work done = 1/6 + 2/9 = (3+4) /18 = 7/18
Thank u★★★
#ckc
B's 1 hour work = 1/9
B's 2 hour work = 2/9
Therefore portion of work done = 1/6 + 2/9 = (3+4) /18 = 7/18
Thank u★★★
#ckc
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