If a , a – 2 , 3a are in A.P. , then find a. Options: A . &nbsp– 1 B . &nbsp1 C . &nbsp–2 D . &nbsp2

If a , a – 2 , 3a are in A.P. , then find a.

Question

If a , a – 2 , 3a are in A.P. , then find a.

Options:

A . – 1

B . 1

C . –2

D . 2

Answer: Option C

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Yatendra kumar 2017-11-04 11:02:09

A+d=a-2(as AP basic formula)
D=-2
A-2+d=3a (on putting the value of d)
A=-2

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