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If the 10^(th) and 12^(th) terms of an A...

If the `10^(th)` and `12^(th)` terms of an A.P are respectively 15 and 21 then the common difference of the A.P. is

A

`-6`

B

4

C

6

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
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