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Byju's Answer
Standard VII
Mathematics
Time and Work
4 men and 3...
Question
4
men and
3
women finish a job in
6
days. And
5
men and
7
women can do the same job in
4
days. How long will
1
man and
1
woman take to do the work?
A
22
2
7
d
a
y
s
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B
25
1
2
d
a
y
s
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C
5
1
7
d
a
y
s
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D
12
7
22
d
a
y
s
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Solution
The correct option is
A
22
2
7
d
a
y
s
(
4
men
+
3
women)
×
6
days
=
(
5
men
+
7
women)
×
4
days
24
men
+
18
women
=
20
men
+
28
women
4
men days
=
10
women days
1
men days
=
2.5
women days ...(i)
Total work to be done
=
24
men days
+
18
women days
=
60
women days
+
18
women days [From (i)]
=
78
women days
Work done by
1
man
+
1
women
=
2.5
women
+
1
women
=
3.5
∴
Both a man and a woman can complete the entire work in
=
78
3.5
=
22
(
2
7
)
days
Suggest Corrections
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