Question

if 8k + 4, 6 k - 2, 2 k + 12 are in AP then the value of k is answer is 10​

Answer 1

Answer:

if k =10 , common difference = ? or d = ?,

a1= 8k + 4 , a2 = 6k - 2 , a3 = 2k + 12

8(10) + 4 , 6(10) - 2 , 2(10) + 12 are in AP

80 + 4 , 60 -2 , 20 + 12

84 , 58 , 32

using ,

d = a2 - a3 = a1 - a2,

d = 58 - 32 = 84 - 58

d = 26 = 26

therefore , d = 26,

yes, k =10 ,

Hence finded