A and B can a finish a piece of work in 30 days they worked together for 20 days and then B left the remaining work was done by A alone in 16 more days A alone can finish the work
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A+B = 30
total work = 30
efficiency of A+B = 1
they working together 20 days
and complete 20 works according to there efficiency.
remaining work = 30-20= 10
A 's alone working on remaining work = 10/16
efficiency of A = 10/16= 5/8
than,
A's complete the work alone= total work/efficiency= 30/5/8= (30×8)/5= 6×8 = 48 days
»»48 days will be the answer.
total work = 30
efficiency of A+B = 1
they working together 20 days
and complete 20 works according to there efficiency.
remaining work = 30-20= 10
A 's alone working on remaining work = 10/16
efficiency of A = 10/16= 5/8
than,
A's complete the work alone= total work/efficiency= 30/5/8= (30×8)/5= 6×8 = 48 days
»»48 days will be the answer.
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