IBPS SO Prelims Exam Model Paper 5

GIVEN:
A and B can do a work in 5 and 10 days respectively.
A and B were paid Rs. 6000 to do the work together.
With the help of C they finished the work in 2 days
CONCEPT :
Time and work
FORMULA:
Ratio of amount paid = Ratio of their one day’s work
CALCULATION:
A can do a work in 5 days
⇒ 1 day work of A =

1

5

units
B can do a work in 10 days
⇒ 1 day work of B =

1

10

units
Work done by A and B in 2 days =2 × (

1

5

+

1

10

) =

3

5

Work done by C in 2 days = 1 –

3

5

=

2

5

⇒ Work done by C in 1 day =

1

5

units
A’s wage : B’s wage : C’s wage =

1

5

:

1

10

:

1

5

= 2 : 1 : 2
⇒ C’s share =

2

5

× 6000 = Rs. 2400
∴, C will get Rs. 2400