Q. Type the missing number in this sequence:84, _, 90, 93, 96, 99
Determine Pattern: We need to determine the pattern in the sequence to find the missing number. Let's look at the differences between the known numbers.93−90=396−93=399−96=3It seems that the sequence is increasing by 3 each time.
Calculate Missing Number: If the pattern is consistent, then the number before 90 should also be 3 less than 90. So, we calculate 90−3 to find the missing number. 90−3=87
Confirm Pattern Fit: Let's check if the number we found fits the pattern by checking the difference between 84 and 87. 87−84=3This confirms that the pattern is consistent and the missing number is indeed 87.