Question

The mean of 5 numbers is x, x+5, x+6,x+9,x+12 is 9.Find numbers​

Answer 1

Answer:

X, x+5, x+6 ,x+9 , x+12

Step-by-step explanation:

the mean of this 5 number is __. X+6=9 or, x= 9-6. or,. X = 3

Answer 2

CORRECT QUESTION :-

 The mean of 5 numbers is x , x + 3 , x + 6 , x + 9 and x + 12.

  Find the numbers .

GIVEN :-

• Mean of 5 numbers is 9

• The numbers are x , x + 3 , x + 6 , x + 9 and x + 12 .

TO FIND :-

• The numbers .

SOLUTION :-

           $\bf MEAN = \dfrac{SUM \ OF \ TERMS}{NUMBER \ OF \ TERMS}$

             $\longrightarrow\sf \dfrac{x+ ( x+3 )+( x+6 )+( x+9 )+( x+12 )}{5} = 9\\\\\longrightarrow 5x+30 = 45 \\\\\longrightarrow 5x = 45-30\\\\\longrightarrow 5x=15\\\\\longrightarrow \bf x=3$

          The numbers are 3 , 6 , 9 , 12 and 15 .