# CAT Progressions and Series Questions with Answers

#### Progressions and Series

Progressions and series covers arithmetic, geometric, and harmonic progressions and series, AGP, sum of series, special series, and AM-GM inequality. Solve the practice questions and go through the detailed explanations and video solutions to learn this topic.

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Instructions

For the following questions answer them individually

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Question 20

# There are 8436 steel balls stacked in a pile with one ball on the top, 3 balls in the second layer, 6 balls in the third layer, 10 balls in 4th layer and so on. Find the total number of layers.

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