5th term of an A.P. is 10 more than its 3rd term. What is the difference of its 9th and 6th terms?

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5th term of an A.P. is 10 more than its 3rd term. What is the difference of its 9th and 6th terms?
NTSE Stage 1 2018
(A) 15
(B) 3
(C) 6
(D) 10
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