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AFCAT I 2020 Solved Paper
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© examsnet.com
Question : 56
Total: 100
A can do a work in 10 days. A work for 4 days and B finished the remaining work in 9 days. Together they will finish the work in how many days.
12
6
8
10
Validate
Solution:
👈: Video Solution
A's 1 day's work
=
1
10
A's 4 day's work
=
4
10
Remaining work
=
1
−
4
10
=
(
10
−
4
)
10
=
6
10
6
10
work,
B
complete in
=
9
days
B alone can complete the whole work in
=
9
×
10
6
=
15
days
B's 1 days work
=
1
15
A's and B's 1 day's work
=
1
15
+
1
10
=
(
2
+
3
)
30
=
5
30
=
1
6
A
and
B
both can complete the whole work in
=
6
days
© examsnet.com
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