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RRB Paramedical Staff Nurse Model Paper 3
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© examsnet.com
Question : 50
Total: 100
Two pipes can fill a cistern separately in 10 h and 15 h. They can together fill the cistern in
6 h
7 h
8 h
9 h
Validate
Solution:
Given, part of cistern filled by
A
=
10
h
Part of a cistem filled by
B
=
15
h
Then, part of the cistem filled by both pipes in
1
h
=
1
10
+
1
15
=
3
+
2
30
=
1
6
So the cistern will be filled in 6 h
© examsnet.com
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