CDS Model Paper 2 Mathematics

5 person's one day work =

1

10

5 person's 5

1

2

day's job =

11

2

×

1

10

=

11

20

Remaining work to be completed =1−

11

20

=

9

20

...(i)
Now, one person's one day's work =

1

10×5

=

1

50

⇒ Ten person's one day's work =10×

1

50

=

1

5

...(ii)
From (i) and (ii), the no. of more days required
=

9 20

1 5

=

9×5

20

=2.25=3 days