A can do a piece of work in 20 days while B can do it in 15 days.With the help of C they completed the work in 5 days.In what time would C alone do it.
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Answer:
A alone do work in 20 days.
B alone can do work in 15 days.
A,B,C together can do work in 5 days.
Lets suppose C alone do work in x days.
5
1
=
25
1
+
15
1
+
x
1
75
15−3−5
=
x
1
75
7
=
x
1
,x=
7
75
days
C alone do work in
4
75
days OR 10.71 days.
Step-by-step explanation:
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