Numerical Appli...

Each crop duster who works in a firm can dust half an acre of crops in $$25$$ minutes. The company must dust eight $$0.75$$-acre lots and twelve $$1.5$$-acre lots to complete a certain job. Calculate the minimum number of crop dusters needed to complete the job in $$5$$ hours.

A cistern can be filled by one tap in $$5$$ hours and by another in $$4$$ hours. How long will it take to fill if both the taps are opened simultaneously?

A man can make $$18$$ cakes in $$6$$ days by working $$6$$ hours a day. How many cakes can he make in $$6$$ days if he works $$12$$ hours a day?

Wyatt can husk at least $$12$$ dozen ears of corn per hour and at most $$18$$ dozen ears of corn per hour. Based on this information, what is a possible amount of time, in hours, that it could take Wyatt to husk $$72$$ dozen ears of corn?

Thomas can paint the house in $$6$$ days while it takes Joe $$12$$ days to paint the same house. How long would it take Thomas and Joe, working together, to paint the house?

The average bonus per employee was.
The chart shows the amount paid in bonuses to the employees of a certain firm.

Consider a pyramid with a square base side of $$6$$ inches and with a height of $$12$$ inches, as shown below. If we cut off the top of the pyramid parallel to the base $$3$$ inches from the tip, what is the volume of the remaining solid?

Using a hose, it takes $$9$$ hours to fill a swimming pool. Using an irrigation pump, it takes $$3$$ hours.
If you use both the hose and pump together, how long will it take to fill the pool?

What was the average number of babies that Dr. Jones delivered each year from 1995 to 1998?

Each side of the base of a square pyramid is reduced by $$20%$$. By what percent must the height be increased so that the volume of the new pyramid is the same as the volume of the original pyramid?