a. | 2 |

21 |

b. | 5 |

21 |

c. | 1 |

7 |

d. | 1 |

3 |

Answer: c. | 1 |

7 |

a. 30

b. 90

c. 180

d. 720

**Answer:** c. 180

a. 5

b. 10

c. 15

d. 20

**Answer:** d. 20

a. 564

b. 645

c. 735

d. 756

**Answer:** d. 756

Word given: "AUCTION"

How many arrangements can you form from the letters of the given word to satisfy the given condition?

a. 30

b. 48

c. 144

d. 576

**Answer:** d. 576