Question

sum of first 55 terms in an A. p is 3300 , find its 28 th term​

Answer 1

Answer:

Class 10th,

Chapter 5,

Arithmetic progressions

Step-by-step explanation:

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Answer 2

Let a and d be the first term and common difference of the given AP respectively.

Given, S55=3300

⇒255[2a+(55−1)d]=3300

⇒55[a+27d]=3300

⇒a+27d=60

Hence, 28th term a28=a+27d=60