Q. Type the missing number in this sequence:5, 6, 8, 11, _, 20, 26
Identify Pattern: Identify the pattern in the sequence.We need to look at the differences between consecutive numbers to see if there is a consistent pattern.6−5=18−6=211−8=3The differences are increasing by 1 each time. Let's see if this pattern continues with the next numbers in the sequence.
Predict Next Difference: Predict the next difference and find the missing number.If the pattern continues, the next difference should be 4.11+4=15So, the missing number should be 15.
Verify Continuation: Verify the pattern continues after the missing number.Let's check if the difference between 20 and the missing number (15) is 5, which would continue the pattern.20−15=5This fits the pattern, as the differences are increasing by 1: 1,2,3,4,5.
Confirm Last Difference: Confirm the pattern holds for the last difference in the sequence.Finally, let's check if the difference between 26 and 20 is 6, which would be the next number in the pattern of differences.26−20=6This confirms the pattern is consistent throughout the sequence.