Home
Class 9
MATHS
If the mean of x+2,\ 2x+3,\ 3x+4,\ 4x...

If the mean of `x+2,\ 2x+3,\ 3x+4,\ 4x+5\ i s\ x+2,` find `x`

Text Solution

Verified by Experts

Given:
We have,
`=> ((x+2)+(2x+3)+(3x+4)+(4x+5))/(4) `
`=> x+2`
`=> 10x+14=4x+8 `
`=>x= -1`
Promotional Banner

Topper's Solved these Questions

  • LINES AND ANGLES

    RD SHARMA|Exercise All Questions|186 Videos
  • NUMBER SYSTEM

    RD SHARMA|Exercise All Questions|130 Videos

Similar Questions

Explore conceptually related problems

If the mean of x + 2, 2x + 3, 3x + 4 and 4x + 5 is x + 2, then find the value of x.

Find the domain of f(x) = (x^(2) + 3x + 5)/(x^(2) - 5x+ 4)

If x=-3 find the value of 4x^2-5x+3

Find the HCF of f(x)=33 (2x + 3)^(2) (3x-4)^(3) (4x-5)^(4) and g(x)= 22 (x+1) (2x + 3) (4x-5)^(2) (4x^(2)-9)

Evaluate : 3/5 x + 2/3 x + ( -4/5 ) x

Find the derivative of (x^(3) - 3x^(2) + 4)(4x^(5) + x^(2) -1) :

Divide the polynomial p(x) by the polynomial g(x) and find the quotient and remainder in each of the following: (i) p(x) = x^3 - 3x^2 + 5x - 3, g(x) = x^2 - 2 (ii) p(x) = x^4 - 3x^2 + 4x - 5, g(x) = x^2 + 1 - x (iii) p(x) = x^4 - 5x + 6, g(x) = 2 - x^2

Find the domain of the function: f(x) = (x^(2) + 3x+5)/(x^(2) -5x+4)

RD SHARMA-MEASURES OF CENTRAL TENDENCY-All Questions
  1. If the ratio of mean and median of a certain data is 2:3, then find...

    Text Solution

    |

  2. If the ratio of mode and median of a certain data is 6:5, then find...

    Text Solution

    |

  3. If the mean of x+2,\ 2x+3,\ 3x+4,\ 4x+5\ i s\ x+2, find x

    Text Solution

    |

  4. The arithmetic mean and mode of a data are 24 and 12 respectively, ...

    Text Solution

    |

  5. If the difference of mode and median of a data is 24, then find the...

    Text Solution

    |

  6. If the median of scores x/2, x/3, x/4, x/5a n d x/6(w h e r e\ x >0)...

    Text Solution

    |

  7. If the mode of scores 3,\ 4,\ 3,\ 5,\ 4,\ 6,\ 6,\ x\ \ i s\ 4 , fin...

    Text Solution

    |

  8. If the median of 33 ,\ 28 ,\ 20 ,\ 25 ,\ 34 ,\ x\ i s\ 29 , find th...

    Text Solution

    |

  9. If the median of the scores 1,\ 2,\ x ,\ 4,\ 5\ (w h e r e\ 1<2<x<4<...

    Text Solution

    |

  10. Which one of the following is not a measure of central value: Mean ...

    Text Solution

    |

  11. The mean of n observations is xdot If k is added to each observa...

    Text Solution

    |

  12. The mean of n observations is X dot If each observation is ...

    Text Solution

    |

  13. The mean of a set of seven numbers is 81. If one of the numbers is d...

    Text Solution

    |

  14. For which set of numbers do the mean, median and mode all have the ...

    Text Solution

    |

  15. For the set of numbers 2, 2, 4, 5 and 12, which of the following st...

    Text Solution

    |

  16. If the arithmetic mean of 7,\ 5,\ 13 ,\ x\ a n d\ 9\ i s\ 10 , then...

    Text Solution

    |

  17. If the mean of five observations x ,\ x+2,\ x+4,\ x+6,\ x+8\ i s\ 1...

    Text Solution

    |

  18. Mode is least frequent value           (b) middle most value mos...

    Text Solution

    |

  19. The following is the data of wages per day: 5, 4, 7, 5, 8, 8, 8, 5,...

    Text Solution

    |

  20. The empirical relation between mean, mode and median is Mod e\ =\ ...

    Text Solution

    |