How many signals can be made by hoisting 2 blue, 2 red and 5 yellow flags on a pole at the same time?

How many signals can be made by hoisting 5 flags of different colours ?

How many different signals can be made by hoisting 6 differently coloured flags one above the other when any number of them may be hoisted at once?

How many different signals can be transmitted by arranging 2 red, 3 yellow and 2 green flags on pole, if all the seven flags are used to transmit a signal?

How many different signals can be made from 4 red,2 white and 3 green flags by arranging all of them vertically on a flagstaff?

How many different signals can be made by 5 flags from 8 flags of different colours?

How many different signals, can be made by 5 flags from 8 flags of different colours?

How many different signals can be made by 4 flags from 6 flags of different colours?