Question

Sonu can do a work in 25 days and kavita can do it in 20 days. they work together for 5 days and then sonu goes away. in how many days will kavita finish the remaining work?

Answer 1

sonu"s 1 day's work = 1/25

Similarly, kavita's 1 day's work = 1/20

sonu's and kavita 's together 1 day's work

=125+120=4+5100=9100125+120=4+5100=9100

Their 5 day's work together = 5 x 1 day's work

=1−45100=551001−45100=55100

Now, this remaining work is done by kavita

Let kavita takes x days to complete it.

Then, 120×x=55100120×x=55100

55×2010055×20100

X = 11 days

So, remaining work is done in 11 days by kavita.