) If for any A.P. d = 5 then t¹⁸- t¹³ = ...
explain with full calculation
(A) 5
(B) 20
(C) 25
(D) 30
Answers
Answered by
19
Answer:
The answer is 25.
Step-by-step explanation:
an=a+(n-1)d
a18=1+(18-1)5
a18=85
Similarly, a13 = 60 so
a18-a13 = 85-60= 25
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