x and y together do a work in 20 days while y alone in 30 days.they work together for 2 days and then x goes away.in how many days y finishes the remaining work
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x in 1day= 1/20
y in 1 day =1/30
together (x+y)=1/20+1/30=3+2/60=5/60=1/12
in 2 day (x+y)=1/12*2=1/6
remaining work=1-1/6=6-1/6=5/6
in 1day y work=1/30
y will do 5/6 work in =5/6*30=25days
y in 1 day =1/30
together (x+y)=1/20+1/30=3+2/60=5/60=1/12
in 2 day (x+y)=1/12*2=1/6
remaining work=1-1/6=6-1/6=5/6
in 1day y work=1/30
y will do 5/6 work in =5/6*30=25days
tnwramit1:
x+y do the work In 20day not x only check that
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