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If for any A.P. d = 5, then t18 – t13 = ….

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If for any A.P. d = 5, then t18 – t13 = ….

(A) 5 

(B) 20 

(C) 25 

(D) 30

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2 Answers

+1 vote
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Best answer

The correct answer is : (C) 25 

Hints: 

t18 - t13= a + (18 - 1)d - [a + (13 - 1)d] 

= a + 17d - a - 12d 

= 5d = 5 x 5 = 25 

+2 votes
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Correct answer is

(C) 25

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