Q. Type the missing number in this sequence:3, _, 27, 81, 243
Identify pattern: We need to identify the pattern in the sequence. Let's look at the numbers given: 3, 27, 81, and 243. We can see that each number is a multiple of 3. To find the specific pattern, we can divide each number by the previous one to see if there's a consistent factor.
Divide 27 by 3: Divide 27 by 3 to see the factor between the first and the third numbers.27÷3=9
Divide 81 by 27: Divide 81 by 27 to confirm the factor between the third and the fourth numbers.81÷27=3This indicates that the factor we found earlier might not be correct, as we expected the factor to be consistent throughout the sequence.