[" 12.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 signals can be made by hoisting 5 flags of different colours ?

How many different signals can be transmitted by arranging 3 red, 2 yellow and 2 green flags on a pole ?

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

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

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

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?