Management Aptitude Test 2016 Paper

(a) ∵ Part of tank filled by A in 1 h =

1

20

and part of tank filled by Bin 1 h =

1

30

∴ Part of tank filled by A and B in 1 h
=

1

20

+

1

30

=

5

60

=

1

12

Time taken to fill

1

3

rd tank by A and B = 12 x

1

3

= 4h
Now. part of tank emptied by leak in 1 h =

1

12

×

1

4

=

1

48

∴ Part of tank filled by A, B and leak in 1h
=

1

12

−

1

48

=

4−1

48

=

3

48

=

1

16

Remaining part to be filled =

2

3

Time taken to fill remaining tank = 16 ×

2

3

=

32

3

∴ Total time to fill the tank
=

32

3

+ 4
=

44

3

=14

2

3

h