If 9 girls can prepare 135 garlands in 3 hours, how many girls are needed to prepare 270 garlands in 1 hour?

How many salt is needed for ORS preparation

10persons can fill up a water tank in 20 hours.How many persons are needed to fill it up in 5 hours? "

5 men can prepare 150 toys in 5 days working 6 hours a day. In how many hours 10 boys can prepare 200 toys in 10 days, if a man works thrice as fast as a boy?

Answer the following question: How many 1.5 V cells are needed to prepare a 9V battery?

In village madhubani 8 women and 12 girls can paint a large mural in 10 hours . 6 women and 8 girl can paint it in 14 hours .The numbers of hours taken by 7 women and 14 girl to paint the mural is :

In how many ways can we arrange 6 different flowers in a circle? In how many ways we can form a garland using these flowers?

3 boys and 3 girls can complete a task in (6)/(5) hours. How many hours will 1 boy and 1 girl require to complete the task?