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## Math History

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Question 2 |

What base is our current number system?

Base 10 | |

Base 60 | |

Base 15 | |

Base 2 |

**UPSC test Questions answers**

Question 4 |

What is the algebraic expression for "the sum of n and 9"?

n - 9 | |

n + 9 | |

n/9 | |

9n |

**Sociology Questions answers**

Question 5 |

What must you have to add and subtract fractions?

Common numerators | |

Different numerators | |

Different denominators | |

Common denominators |

**Education Questions answers**

There are 5 questions to complete.