ravi can complete a work in 10 days. Hari can complete the same work in 15 days .ravi started working and after 4 days Hari joined him .how many days more will they take to complete the remaining work ?
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18/5 days. If additional days are d we have (d+4)/10+d/15=2=1 giving d=18/5 days.
kspaneserpcd1d9:
please read =1 instead of =2=1. pl excuse typing error.
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