## the sum of first six terms of an AP is 42. The ratio of 10th term to its 38th term is 1:3.calculate the fist term and 13th term of the AP .

Question

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## Answers ( )

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Answer: First-term = 14/3, 13th term = 238/15Step-by-step explanation:The sum of the first 6 terms = 42

Ratio of 10th and 38th term = 1:3

From (1) and (2);

a = 14/3 = First termd = 14/15

So,

13th term = a+12d = 238/15(I hope it will be marked as Brainliest)