What number comes next: 81, 27, 9, 3, ___?
Correct answer: B. 1
Each term is the previous term divided by 3: 81 ÷ 3 = 27, 27 ÷ 3 = 9, 9 ÷ 3 = 3, so 3 ÷ 3 = 1. This is a geometric sequence with ratio 1/3.
easy
Answer and explanation
The correct answer is B. 1
Each term is the previous term divided by 3: 81 ÷ 3 = 27, 27 ÷ 3 = 9, 9 ÷ 3 = 3, so 3 ÷ 3 = 1. This is a geometric sequence with ratio 1/3.
Topic: Basic Operations and Number Sequence MCQs · Subject: Numerical Ability