Home
Class 9
MATHS
There are four unknown numbers. The mean...

There are four unknown numbers. The mean of the first two numbers is 4 and the mean of the first three is 9. The mean of all four number is 15, if one of the four number is 2 find the other numbers.

Text Solution

Verified by Experts

The correct Answer is:
`1^(st)=2; 2^(nd)=6; 3^(rd)=19; 4^(th)=33`
Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    NCERT BANGLISH|Exercise TRY THESE|5 Videos
  • STATISTICS

    NCERT BANGLISH|Exercise Do THIS|1 Videos
  • STATISTICS

    NCERT BANGLISH|Exercise EXERCISE 9.1|9 Videos
  • REAL NUMBERS

    NCERT BANGLISH|Exercise EXERCISE - 1.4|37 Videos
  • SURFACE AREAS AND VOLUMES

    NCERT BANGLISH|Exercise EXERCISE 10.4|12 Videos

Similar Questions

Explore conceptually related problems

Mean of first n natural numbers is

The sum of two number is 82945195,if one number is 69100278,find the other number.

The mean of first three terms is 14 and mean of next two terms is 18. The mean of all the five terms is

The geometric mean of two numbers = +- 12 , if one number is 16, then the other number =

The A.M. of two numbers is 10, if one number is 7 then the other number will be

The mean of the squares of first natural numbers is

The arithmetic mean of two numbers is 10 and their geometric mean is 8. find the numbers.

The A.M of two numbers is 10,if one number is 7,then the other number will be __

The mean of 100 numbers is 55. IF the mean of the 40 numbers is 61, find the mean of the remaining 60 numbers.

The mean of square of 1st n natural number is