Q. Type the missing number in this sequence:−98, ____, −102, −104, −106
Determine Pattern: We need to determine the pattern in the sequence to find the missing number. Let's look at the difference between the known numbers.−102−(−104)=−102+104=2−104−(−106)=−104+106=2It seems that the sequence is increasing by 2 as we move from right to left.
Identify Increment: To find the missing number, we will subtract 2 from −102, since the pattern suggests that each number is 2 less than the previous one.−102−2=−104However, −104 is already in the sequence after the missing number, which means we made a mistake. We should have added 2 instead of subtracting because the sequence is decreasing as we move from left to right.