If 15 workers can build a wall in 48 hours.How many workers will be required to do the same work in 72 hours?

If 15 workers can build a wall in 48 houi how many workers will be required to di the same work in 30 hours?

15 workers can dig a well in 14 days. How many workers are needed to dug the same type of well in 6 days?

The number of bacteria in a culture doubles every hour. If there were 50 bacteria originally in a culture, how many bacteria will be there at the end of 5th hour?

Anand takes 9 days more than his father to do a certain piece of work. Together they can do the work in 6 days. How many days will Anand take to do that work alone?

can you recall. How many electrons do halogen require to complete octet.

If 12 labourers take 70 days to complete one work , how many days will 21 labourers take to complete the same work ?