Time & Work, Chain Rule

An employer pays 3 workers X, Y and Z a total of Tk. 36,600 a week. X is paid 125% of the amount Y is paid and 80% of the amount Z is paid. How much does X make a week? 

Rahim can do a piece of work in 20 days. Karim is 25% more efficient than Rahim. The number of days taken by Karim to do the same piece of work is

If 12 carpenters, working 6 hours a day, can make 460 chairs in 24 days, how many chairs will 18 carpenters make in 36days, each working 8 hours a day?

If 3 men or 4 women can construct a wall in 44 days, then the number of days that 8 men and 4 women take to construct it is____?

P, Q, R are employed to do a work for Tk. 5,750. P and Q together finished 19/23 of work and Q and R together finished 8/23 of work. Wage of Q, in Taka, is -

A tank has two leakages. The first leakage alone can empty the tank in 9 min and the second alone would have done it in 6 min. If water leaks out at a constant rate, how long does it take both the leakage together to empty the tank?

X can complete a certain work in the same time in which Y and Z together can do it. If X and Y together can finish it in 10 days and Z alone in 15 days, then Y alone can do it in?

3 pumps working 8 hours a day, can empty a tank in 2 days. How many hours a day must 4 pumps work to empty the tank in 1 day?

4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

A tank can be filled with water by two pipes A and B together in 36 minutes. If the pipe B was stopped after 30 minutes, the tank is filled in 40 minutes. The pipe B can along fill the tank in:

A can do a piece of work in 24 days, B in 32 days and C in 64 days. All begin to do it together, but A leaves after 6 days and B leaves 6 days before the completion of the work. How many days did the work last?

A team of 2 men and 5 women completed one-fourth of a project in 3 days. After 3 days one woman left the team and one man joined the team. The newly formed team took 2 days to complete another one fourth of the project. How many days will 4 men takes to complete the project alone?

Mr. Expert can do a job in 8 days and his son can do it 12 days. How many days will it take them to complete the job if they worked together?

A can do a piece of work in 10 days. While B alone can do it in 15 days. They work together for 5 days and the rest of the work is done by C in 2 days. If they get TK. 450 for the whole work, how much money C should get from the whole?

A cement mixture is composed of 3 elements.By weight, ⅓ of the mixture is sand, 3/5 is water and the remaining 12 pounds of the mixture is gravel. What is the weight of the entire mixture in pounds?

In a class, if 4 students sit in each bench, there are 3 empty benches, but 6 students have to stand if 3 students sit each bench. How many students are there in that class?

Roni can walk a certain distance in 40 days when he rests 9 hours a day. How long will it take to walk twice the distance, twice as face and rest twice as long each day?

Alam starts working on a job and works on it for 12 days and completes 40% of the work. Then Babu joins Alam and together they complete the rest of the work in 12 days. How long (in days) will it take Babu to complete the job if he works alone?

A short distance athlete has taken 60 seconds to cover 100 meters. If he makes 30 steps in 9 seconds, how many steps has he taken in that time?

A takes twice as much times 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.