Question

If 3,a,b,c,37 in an arithmetic sequence,what are the values of a,b, and c?

Answer 1

11.5, 20, 28.5

Explanation:

Given AP

• 3,a,b,c,37

5th term is 37, then common difference is;

• 37 = 3 + 4d ⇒ d = 34/4 = 8.5

Then the 2nd, 3rd and 4th terms:

• a = 3+ 8.5 = 11.5
• b = a + 8.5 = 11.5 + 8.5 = 20
• c = b + 8.5 = 20 + 8.5 = 28.5