a can finish a work in 16 days and B can do the same work in 20 days they both work together for 8 days and then a letter leaves the work and goes away how many days will be take to finish the work
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Answer:
18 days
Step-by-step explanation:
Given,
a can finish a work in 16 days
A=1/16 days
B can do the same work in 20 days
B=1/20
LCM of 16,20 is 80
they both work together for 8 days
A+B=8/80 days
A+B=1/10 days worked
remaining work is 1-1/0=9/10
after 8 days A leaves so B has to do remaining work in 20 days
9/10*20=18 days
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