Question

Find the value of X if 2-X , 8, 15-7X are in A.P​

Answer 1

Answer:

if a,b,c are in A.P then condition is

2b=a+c.

In A.P common difference between two successive numbers are equal.

so,

b-a=c-b

2b=a+c .

By following this condition we get answer.

2*8=(2-X)+(15-7X)

16=17-8X

8X=17-16

8X=1

X=1/8.

Answer 2

Answer:

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