Numerical Appli...

If $$10$$ workers can do a work in $$15$$ hours then $$30$$ workers can do it in _____  hours

Two pipes A and B can fill a tank in $$20$$ and $$30$$ minutes respectively. If both the pipes are used together, then how long it will take to fill the tank?

A tap A can fill a cistern in $$4$$ hours and the tap B can empty the full cistern in $$6$$ hours. If both the taps are opened together in the empty cistern, in how much time will the cistern be filled up?

A and B together can complete a work in $$4$$ days. A alone can finish the work in $$12$$ days, In how many days B alone can finish the work?

A group of workers can do a piece of work in $$24$$ days. However as $$7$$ of them were absent it took $$30$$ days to complete work. How many people actually worked on the job to complete it?

Pipe A can fill a tank in $$5$$ hours, pipe B in $$10$$ hours and pipe C in $$30$$ hours. If all the pipes are open, in how many hours will the tank be filled?

If $$16$$ workers can do a work in $$20$$ hours then how many workers can do the work in $$10$$ hours?

$$3$$ pipes are required to fill a tank in $$1$$ hour. How long it will take to fill a tank by $$5$$ pipes?

$$15$$ persons complete a work in $$4$$ days by working $$6$$ hours a day. How many days it will take to complete the work if $$5$$ persons work same hours per day?

What is the proportionality between the production of cakes & days and production of cakes & hours respectively?