Q. Type the missing number in this sequence:5, 25, _, 625, 3,125, 15,625
Identify Pattern: We observe the given sequence to identify a pattern: 5, 25, _____, 625, 3,125, 15,625. By looking at the numbers, we can see that each number is a multiple of the previous one. To confirm the pattern, we can divide each number by the one before it.
Confirm Multiples: Divide 25 by 5 to see if the pattern is consistent: 25÷5=5. This indicates that each number might be 5 times the previous number.
Find Missing Number: Now, divide 625 by the number before it in the sequence (which we are trying to find) to see if the pattern holds: 625÷_____=5. To find the missing number, we need to perform the inverse operation, which is multiplication: _____×5=625.
Perform Division: To find the missing number, we divide 625 by 5: 625÷5=125. This should be the missing number in the sequence if the pattern is consistent.
Check Solution: To check if 125 fits the pattern, we multiply it by 5 to see if we get the next number in the sequence, which is 3,125: 125×5=625. This is incorrect, as we expected to get 3,125, not 625. We have made a math error.