Question

if 6/5 , a, 4 are in A.P. then value of a is (a) 13 (b) 13/5 (c) 26/5 (d)1​

Answer 1

Answer:

a = 13/5

Step-by-step explanation:

If they are in ap , then their common difference will be same -

==: a - 6/5 = 4 - a

==: 2a = 4 + 6/5

==: 2a = 20/5 + 6/5

==: 2a = 26/5

==: a = 26/5 * 1/2

==: a = 13/5

Option (b) is correct

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Answer 2

Answer:

b) 13/5

Step-by-step explanation:

A.P series

given: 6/5 ,a, 4

find:value of 'a'

a-6/5 =4-a. ( both sides multiply by 5)

5a-6 =20-5a

5a+5a=20+6

10a =26

a= 26/10( divided by 2)

a=13/5