Category: age work mixture digit motion

Solution: How old is Ann now?

Solution: How many workers are needed in an assembly line?

Solution: How many children are there in the family?

Solution: Find the speed of the boat in still water

Solution: How many liters of distilled water should be added to a liter of 35% acid solution

Solution: In how many days can all of them finish the job working together?

Solution: Find the number when four times is added to six times its reciprocal

Solution: How long would it take for the apprentice to do the work alone?

Solution: How long would it take to finish the work if all working together?

Solution: What was his original speed?