Question

if 2x, 5, 3x, 12, 5x, 17, 6 median is 20 find the value of x = ______​

Answer 1

Step-by-step explanation:

GIVEN :

The data set is 2x, 5, 3x, 12, 5x, 17, 6 and its median is 20

TO FIND :

The value of x in the given data set

SOLUTION :

Given that the data is 2x, 5, 3x, 12, 5x, 17, 6 and its median is 20

Number of data = 7 and Median=20

\frac{2x+5+3x+12+5x+17+6}{7}=20

7

2x+5+3x+12+5x+17+6

=20

10x+40=20\times 710x+40=20×7

10x+40=140

10x=140-40

10x=100

x=\frac{100}{10}x=

10

100

∴ x=10.

Therefore the value of x in the given data set is 10.

Hence the value x is x=10.

Answer 2

Answer:

Step-by-step  

The data set is 2x, 5, 3x, 12, 5x, 17, 6 and its median is 20

TO FIND :

The value of x in the given data set

SOLUTION :

Given that the data is 2x, 5, 3x, 12, 5x, 17, 6 and its median is 20

Number of data = 7 and Median=20

\frac{2x+5+3x+12+5x+17+6}{7}=20

7

2x+5+3x+12+5x+17+6

=20

10x+40=20\times 710x+40=20×7

10x+40=140

10x=140-40

10x=100

x=\frac{100}{10}x=

10

100

∴ x=10.explanation: