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Subjects
Mathematics State Board
Class 8
Life Mathematics
Compound Variation
11.
Find the number of men
Exercise condition:
5
m.
If
39
men
working
10
hour
a day can finish the work in
20
days
.
Find
the number of men are needed to finish the work in
15
days
if they work
13
hours
a day. (Determine the value using
formula method
)
The
number of men
required to finish the work are
195
40
.
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