Q. Type the missing number in this sequence:3, 9, _____, 81, 243
Identify Pattern in Sequence: We need to identify the pattern in the sequence to find the missing number. Let's look at the relationship between the first two numbers.3 to 9 can be seen as a multiplication by 3 (3×3=9).
Check Pattern Consistency: Now let's check if the same pattern applies to the next numbers in the sequence. We know that 81 is after the missing number, and 243 is after 81.81 to 243 is also a multiplication by 3 (81×3=243).
Apply Pattern to Find Missing Number: Since the pattern of multiplying by 3 is consistent, we can apply it to find the missing number. We need to multiply 9 by 3 to find the missing number.9×3=27.
Verify Missing Number: Now let's check if 27 fits the pattern by multiplying it by 3 to see if we get 81.27×3=81.