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SSC CHSL 19 Apr 2021 Shift 3 Solved Paper
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© examsnet.com
Question : 67
Total: 100
P
and
Q
can complete a work in 9 days and 15 days, respectively. If they work together for three days, then in how many days will the remaining work be completed by
Q
alone?
8
9
7
12
Validate
Solution:
Work done by
P
and
Q
together in 3 days,
=
3
9
+
3
15
=
1
3
+
1
5
=
5
+
3
15
=
8
15
∴
Remaining work
=
1
−
8
15
=
15
−
8
15
=
7
15
∴
Time taken by
Q
alone to complete the remaining work
=
15
×
7
15
=
7
days.
© examsnet.com
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