A and B can compete a piece of work in 18 days. They worked together for 12 days and then A left. B alone finished the w…

Two pipes A and B can fill a tank in 36 min. and 45 min. respectively. Another pipe C can empty the tank in 30 min. Firs…

If there is a reduction in the number of workers in a factory in the ratio 15 : 11 and an increment in their wages in th…

George takes 8 hours to copy a 50-page manuscript while Sonia can copy the same manuscript in 6 hours. How many hours wo…

Some carpenters promised to do a job in 9 days but 5 of them were absent and remaining men did the job in 12 day. The or…

Two typist of varying skills can do a job in 6 minutes if they work together. If the first typist typed alone for 4 minu…

A and B work together to complete the rest of a job in 7 days. However,$$\frac{{37}}{{100}}$$ of the job was already do…

4 mat-weavers can weave 4 mats in 4 days. At the same rate how many mats would be woven by 8 mat-weavers in 8 days ?