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# Maths

rename
rutvikjadav's
version from
2019-07-12 09:34

## Section

Question | Answer |
---|---|

1 to 9 sum | 45. |

1 to 10 sum | 55 |

1 to 11 sum | 66 |

1 to 15 sum | 120 |

unit digit of perfect square | never 2 3 7 8 |

sum of digit of perfect square | 1 4 7 9 |

last 2 digit of any perfect square | enulation of one of upto 24 |

1 radian | 57 16'22" |

2! | 2 |

3! | 6 |

4! | 24 |

5! | 120 |

6! | 720 |

7! | 5040 |

unit digit of sum of n fectorial (n=>4) | 3 |

unit digit of multiplicatoin of fectorial (n=>5) | 0 |

number of prime upto 25 | 9 |

number of prime upto 50 | 15 |

number of prime upto 100 | 25 |

number of prime upto 200 | 46 |

number of prime upto 1000 | 168 |

perfect numbers | 6 28 498 8128 |

root 2 | 1.414 |

root 3 | 1.732 |

root 5 | 2.236 |

root 6 | 2.449 |

2 root 3 | 3.464 |

3 root 3 | 5.196 |

sum of digit of perfect cube | 0 1 8 9 |

Question | Answer |
---|---|

osculator of 7 | -2 |

osculator of 13 | +4 |

osculator of 17 | -5 |

osculator of 19 | +2 |

osculator of 23 | +7 |

osculator of 29 | +3 |

osculator of 31 | -3 |

Question | Answer |
---|---|

10% cheat in buying and selling | 22.22% profit |

20% cheat in buying and selling | 50% profit |

30% cheat in buying and selling | 85.71% profit |

1/12 | 8.33 |

1/13 | 7.69 |

1/14 | 7.14 |

1/15 | 6.66 |

1/16 | 6.25 |

1/17 | 5.88 |

1/18 | 5.55 |

4 (3 year at ci resultant) | 12.4864 |

5 (3 year at ci resultant) | 15.7625 |

6 (3 year at ci resultant) | 19.1016 |

7 (3 year at ci resultant) | 22.5043 |

8 (3 year at ci resultant) | 25.9712 |

9 (3 year at ci resultant) | 29.5029 |

10 (3 year at ci resultant) | 33.1 |

4 (4 year at ci resultant) | 16.9858 |

5 (4 year at ci resultant) | 21.5506 |

6 (4 year at ci resultant) | 26.2476 |

Question | Answer |
---|---|

18 km/hr | 5 m/s |

50 km/hr | 125/9 m/s |

60 km/hr | 50/3 m/s |

avg speed of 12, 24 | 16 |

avg speed of 15, 30 | 20 |

avg speed of 15, 45 | 22.5 |

avg speed of 15, 60 | 24 |

avg speed of 20, 30 | 24 |

avg speed of 20, 40 | 80/3 |

avg speed of 20, 60 | 30 |

avg speed of 20, 80 | 32 |

avg speed of 30, 45 | 36 |

avg speed of 30, 60 | 40 |

avg speed of 30, 90 | 45 |

avg speed of 30, 120 | 48 |

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