Question

10th term of an arithmetic sequence is 24 and it's 14th term is 36What is it's common difference?
What is the first term of this sequence?

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Answer 1

Answer:

» 10th term = 24

» 14th term = 36

To find: a and d.

Solution:

→ a + 9d = 24 ... (1)

→ a + 13d = 36 ... (2)

On solving we get

=> d = 3 and a = - 3