A and B can do a work in days and 30 days
respectively. In how many days can they complete the work if they work
A can do a work in 24 days. B and C together
can do the same work in 18 days. In how many days can A, B and C together do a
work which is times the previous work?
(a) 32 days
(b) 28 days
(c) 36 days
(d) 40 days
A and B together can complete a work in 6
days. A alone can complete the same work in 10 days. Every day if B works only
half a day then in how many days can A and B together complete the work? .
(a) 12 days
(b) 8 days
A certain work is completed by A, B and C
together. A and B together can do of a work in the same time
as B and C together can do of the work. The ratio of
work 23 done by A, B and C is _________.
(a) 6 : 8 : 9
(b) 6 : 8 : 7
(c) 8 : 6 : 9
(d) 9 : 8 : 6
X is twice as fast as Y and is able to
complete a piece of work in 12 days less than Y. The time in which they can
complete the work together is ______.
(a) 16 days
(b) 24 days
(c) 4 days
(d) 8 days
One man and one woman together can complete a
piece of work in 18 days. A man alone can complete the work in 30 days, In how
many days can one woman alone complete the work? .
(a) 45 days
(b) 54 days
(c) 60 days
(d) 72 days
A alone worked for 6 days and then B joined
him. After 10 more days A left and B took 2 more days to complete the work, If
A and B together can do the work in 14 days, how many days would each of them
take to do the work individually? .
(a) 24, 32
(b) 15, 30
(c) 18, 27
(d) 24, 36
P and Q can do a work in 12 days and 16 days
respectively. If they work on alternate days, beginning with Q, then in how
many days will the work be completed? .
215 men can construct a 677 m long wall in
13x5 days. How many men are required to construct a wall twice the length of
the previous wall in half the time? .
A hostel has provisions for 800 men for 42
days at the rate of 2 kg per day per man. For how many days will the provisions
last for 600 men at the rate of 4 kg per day per man? .