Home
Class 10
MATHS
The sum of the first 20 even natural num...

The sum of the first 20 even natural numbers is

A

5050

B

55

C

505

D

420

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    VGS PUBLICATION-BRILLIANT|Exercise EXERCISE|146 Videos
  • TANGENT AND SECANTS TO A CIRCLE

    VGS PUBLICATION-BRILLIANT|Exercise CREATIVE BITS FOR CCE MODEL EXAMINATION|106 Videos

Similar Questions

Explore conceptually related problems

The sum of the first 'n' natural numbers is given by the formula S=(n(n+1))/2 . Find 'n' if the sum is 465.

The variance of the first 50 even natural numbers is

The variance of the first 50 even natural numbers is

Find the sum of : the first 120 natural numbers

Sum of the first 10 natural numbers is

Find the sum of : the first n natural numbers

Find the sum of : the first 1000 natural numbers

Find the mean of the first ten natural numbers.

Find the mean of the first ten natural numbers.

A = sum of first 10 natural numbers, B = sum of squares of first 10 natural numbers, C = sum of cubes of first 10 natural numbers, D = sum of first 10 even natural numbers, then increasing order of A,B,C,D

VGS PUBLICATION-BRILLIANT-SUMMATIVE ASSESSMENT-SUMMATIVE ASSESSMENT
  1. If A = {x : x is a prime less than 20} and B = {x : x is a whole numbe...

    Text Solution

    |

  2. if a, b,c are in A.P. then b =

    Text Solution

    |

  3. If the number of subsets of a given set is 32, then the number of elem...

    Text Solution

    |

  4. The distance of (3, 4) from origin is

    Text Solution

    |

  5. The sum of the roots of 6x^2 = 1 is

    Text Solution

    |

  6. If the polynomial p(x) = x^4 - 2x^3 + x^2 - 1 is divided by (x + 1), t...

    Text Solution

    |

  7. If the sum of a number and its reciprocal is 17/4, then that number is...

    Text Solution

    |

  8. If log10 2 = 0.3010, then log10 32 is

    Text Solution

    |

  9. The point (-2, -2) is in the ............. quadrant.

    Text Solution

    |

  10. The sum of the first 20 even natural numbers is

    Text Solution

    |

  11. The roots of a quadratic equation ax^2- bx + c = 0, a ne 0 are

    Text Solution

    |

  12. The probability is sure event is

    Text Solution

    |

  13. Sec theta =

    Text Solution

    |

  14. Side of a cube and diameter of sphere are equal, then the ratio of the...

    Text Solution

    |

  15. A die is thrown once. Find the probability of getting a prime number,

    Text Solution

    |

  16. A metallic sphere of radius ‘r’ is melted and recast into the shape of...

    Text Solution

    |

  17. Mean of certain number of observations is barx. If each observation is...

    Text Solution

    |

  18. A ladder 15m long just reaches the top of vertical wall. If the ladder...

    Text Solution

    |

  19. If sec theta + tan theta = x, then sec theta =

    Text Solution

    |

  20. At point 'P' on a circle, PQ is a tangent and 'O' is the centre of the...

    Text Solution

    |