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8RB Group D 23-Sep-2018 Shift 1 Solved Paper
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© examsnet.com
Question : 80
Total: 100
3 men and 5 boys can complete a task in 15 days; whereas 6 men and 7 boys can complete the same task in 9 days. Find the relationship between the task done by the boys and the task done by the men.
The work of 4 boys is equivalent to the work of 3 men
The work of 6 boys is equivalent to the work of 2 men
The work of 3 boys is equivalent to the work of 4 men
The work of 7 boys is equivalent to the work of 3 men
Validate
Solution:
One day work of
men +5 boys
=
1
15
.....(1)
6
men
+
7
boys
=
1
9
....(2)
After solving in (1) and (2),
Work done by 1 Boy
=
1
45
×
3
Work done by 1 Men
=
4
15
×
27
So, work of 4 boys
=
1
45
×
3
×
4
=
4
45
×
3
Work of 3 men
=
4
15
×
27
×
3
=
4
45
×
3
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