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Manipal Entrance Test 2016 English Paper
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© examsnet.com
Question : 29
Total: 30
A
works twice as fast as
B
. If
B
can complete a piece of work independently in 12 days, then what will be the number of days taken by
A
and
B
together to finish the work?
4
6
8
18
Validate
Solution:
Time taken to complete the work by
B
=
12
days
since, A work twice as fast as
B
.
∴ Time taken to complete the work by
A
=
6
days
Now, one day work of
B
=
1
12
and one day work of
A
=
1
6
∴ One day work of
(
A
+
B
)
=
1
6
+
1
12
=
1
4
Hence, time taken by A and B together to finish the work = 4 days.
© examsnet.com
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