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RBI Grade B Officers 22 Nov 2015 Paper
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© examsnet.com
Question : 29
Total: 200
6 men can complete a piece of work in 12 days. 8 women can complete the same piece of work in 18 days and 18 children can do it in 10 days. 4 men, 12 women and 20 children do the work for 2 days. If the remaining work be completed by men only in 1 day, how many men will be required?
36
24
18
Cannot be determined
None of these
Validate
Solution:
(1) 1 man will complete thework in = 6 × 12 = 72 days
1 woman will complete thework in = 8 × 18 = 144 days
1 child will complete the workin = 18 × 10 = 180 days
4 men + 12 women + 20 children’s2 days’ work
=
2
[
4
72
+
12
144
+
20
180
]
=
2
[
1
18
+
1
12
+
1
9
]
=
2
(
2
+
3
+
4
)
36
=
1
2
∴ Remaining work
=
1
2
∴Required number of men
=
72
×
1
2
=
36
© examsnet.com
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