How many terms of the ap 1,4,7......are needed to make the sum 51?
Follow the given link for similar query:
https://www.meritnation.com/ask-answer/question/how-many-terms-of-an-ap-1-4-7-are-needed-to-give-the-sum-2/math/7901195
https://www.meritnation.com/ask-answer/question/how-many-terms-of-an-ap-1-4-7-are-needed-to-give-the-sum-2/math/7901195