The number which best completes the sequence below is:
10 8 7 14 15 13 12 24 25
23
To find the missing number in the sequence, let's analyze the pattern:
From the given sequence, we can observe that:
- The first number is 10.
- The next number is obtained by subtracting 2 from the previous number (8 = 10 - 2).
- The third number is obtained by subtracting 1 from the previous number (7 = 8 - 1).
- The fourth number is obtained by doubling the previous number (14 = 7 * 2).
- The fifth number is obtained by adding 1 to the previous number (15 = 14 + 1).
- The sixth number is obtained by subtracting 2 from the previous number.
- The seventh number is obtained by subtracting 1 from the previous number.
- The eighth number is obtained by doubling the previous number.
- The ninth number is obtained by adding 1 to the previous number.
Based on this pattern, the missing number can be found by doubling the previous number. Therefore, the missing number should be 48 (24 * 2).
So, the number that best completes the sequence is 48.