Question

If.the 4th and the 7th teams of an HP respectively find the first and the nth terms of the H.P​

Answer 1

Answer:

ANSWER

Let the first element be x and and the ratio be r

a=xr

3

(1)

b=xr

6

(2)

c=xr

9

(3)

Multiplying (1) and (3)

ac=x

2

r

12

=(xr

6

)

2

=b

2

Hence the correct option is (C).

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