Class 10 Maths Chapter 10
Geometric Progression
Important Questions

A Geometric Progression (GP) as we study in geometric progression class 10 ICSE is a sequence of numbers where each number is found by multiplying the previous one by the same amount. This special amount we multiply by is called the “common ratio.” Imagine you have a starting number, let’s call it “a.” Then, to find the next number in the sequence, you don’t add or subtract like in some other sequences. Instead, you multiply “a” by a fixed number “r” to get the next number, and you keep doing this for all the numbers in the sequence. So, if “a” is 2, and “r” is 3, our GP would look like this: 2, 6, 18, 54, 162, … Here’s a breakdown of the terms: The first term is 2 (that’s just our starting number). To get the second term, we multiply the first term (2) by the common ratio (3), so we get 2 * 3 = 6. To find the third term, we multiply the second term (6) by the common ratio (3) again, giving us 6 * 3 = 18. We keep doing this for each term in the sequence.