Question

If 7, 2x, 5 are in A.P then find x.​

Answer 1

Answer:

if a,b,c are in ap then 2b =a+c

2×2x= 7+5

4x= 12

x= 3

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Answer 2

Answer:

Explanation:

see let 7 be a, 2x be b and 5 be c

acc to the formula 2b=a+c

therefore,

                 2(2x)=7+5

                  2(2x)=12

                  2x=12/2 => x=3

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