Skip to content / Đến nội dung
ThichHocToan.com

PIMSO 2025 - Mathematics - Secondary 1 - National Round Question 15

PIMSO Maths · PIMSO 2025 - Mathematics - Secondary 1 - National Round

Question 15

The sequence is defined as

b, 2b+3, 3b+6, 4b+9, …

For a particular value of b, the first term is equal to b, and each term after the first is 10 greater than the previous term. What is the value of the 2025th term in the sequence?
  1. 20245
  2. 18222
  3. 18225
  4. 20247