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Find the number of different signals tha...

Find the number of different signals that can be generated by arranging at least 2 flags in order (one below the other) on a vertical staff, if five different flags are available.

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MODERN PUBLICATION-PERMUTATIONS AND COMBINATIONS -EXERCISE 7 (b) Short Answer Type Questions
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  2. John wants to go abroad by ship and return by air. He has a choice of ...

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  3. There are 5 routes ferom A to B and 3 routes from place B to place C. ...

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  4. If there are 20 steamers plying between places A and B, in how many wa...

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  5. In how many ways can 5 ladies draw water from 5 taps, assuming that no...

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  6. In how many ways can 3 people be seated in a row containing 7 seats?

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  7. A sample of 3 bulbs is tested. A bulb is labelled 'G' if it is good an...

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  8. Six pictures are to be arranged from left to right on a wall of an art...

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  9. The digits, from 0 to 9 are written on 10 slips of paper (one digit on...

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  10. For a group photograph, 3 boys and 2 girls stand in a line in all poss...

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  11. How many 5-digit telephone numbers can be constructed using the dig...

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  12. Given 7 flags of different colours, how many different signals can be ...

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  13. Find the number of different signals that can be made by arranging at ...

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  14. How many numbers can be formed fro the digits 1,2,3 and 9, if repetiti...

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  15. Kartar goes to a movie. The cinema hall has two entrances and three ex...

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  16. Find the number of different signals that can be generated by arrangin...

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