Q. Type the missing number in this sequence:78, 71, _, 57, 50
Identify Pattern: Identify the pattern in the sequence.We can see that the sequence is decreasing, so let's find the difference between the first two numbers.78−71=7The sequence seems to be decreasing by 7 each time.
Apply Pattern: Apply the pattern to find the missing number.If we subtract 7 from 71, we should get the missing number.71−7=64So, the missing number should be 64.
Verify Continuation: Verify the pattern continues correctly after the missing number.Now, let's check if the sequence continues with the same pattern by adding 7 to the missing number and comparing it to the next number in the sequence.64+7=7171 is not the next number in the sequence; the next number is 57, so we need to check our pattern again.