Question

if a 13,b,3 are in arithmetic progression then value of a is

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Answer 1

Answer:

if a 13,b,3 are in arithmetic progression then value of a is

Answer 2

Answer:

18

Step-by-step explanation:

The given Arithmetic progression is a, 13, b, 3

Generally, we can say that if a, b, c are in AP if b - a = c - b

We can split the above AP into 2:

a, 13, b

Here 13 - a = b - 13

a + b = 13 + 13

a + b = 26  --- (1)

13, b, 3

b - 13 = 3 - b

b + b = 3 + 13

2b = 16

b = 16/2 = 8

Substituting b = 8 in equation (1),

a = 26 - 8 = 18