Time, Work, and Projects

A and B take a tender to do a work worth Rs. 504. If A can work alone for 15 days and B can alone do the same work in 20 days, then find out who gets extra amount and how much extra if both work together.

A maintenance department has supply of commodities for 72 engineers for a period of 54 days. The supply of commodities gets reduced by 10% when 18 more engineers come to work. Find out the number of days for which the engineers will have to work.

A, B and C take a tender to make a wall with Rs. 6072. If all work alone simultaneously, they complete the work in 15, 20 and 12 days, respectively. But, they work together to complete the wall. Find the highest amount accepted and the person who gets it.

A man starts a work and one more man is added from the 2^nd day regularly. If the work is finished in 30 days, then find how many days would be required to complete the same work with 1 man working regularly?

x can make a wall in 25 months, y can make the same wall in 35 months and z can break that wall in 45 months. How many months will it take for them to completely construct the wall once when all three of them work together?

Worker A takes 8 hours to do a job. Worker B takes 10 hours to do the same job. How long should it take both A & B, working together but independently, to do the same job?

A, B & C can complete a piece of work in 24, 6 & 12 days respectively, working together they will complete the same work in

A man can do a piece of work in 5 days, but with the help of his son, he can do it in 3 days. In what time can the son do the same piece of work alone?

A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in

A is twice as good a workman as B & together they finish a piece of work in 18 days. In how many days will A alone finish the work?

A team of 24 men is supposed to do a job in 36 days. After 28 days, some more men are employed and work was finished 4 days earlier. Then how many more men were employed ?

If 15 men and 21 boys can do a piece of work in 6 days, 18 men and 24 boys can do it in 4 days, then the ratio of daily work done by a man to that of a boy is

P is 20% more efficient than Q. P can complete a work in 24 days. If P and Q work together, how much time will it take to complete the same work?