10,8,7,14,15 = a,b,c,d,e
a=10
b=a-2
c=b-1
d=c*2
e=d+1
15-2=13
13-1=12
12*2=24
24+1=25
25-2=23
9
(plus) + 4 (minus) - 3
The letter is L and the number is 12.
7 The difference between each successive pair is being halved. 100 -> 52 = 48 52 -> 28 = 24 28 -> 16 = 12 16 -> 10 = 6 Thus the next number is 10 - 6/2 = 7
The next would be 7. 100 minus 48 is 52. 52 minus 24 (half of 48) is 28. 28 minus 12 (half of 24) is 16. etc.. The next in the sequence after 7 would be 5.5.
What number best completes the sequence 1 1/2 5 10 1/2 18
The sequence appears to alternate between adding and subtracting numbers. The pattern seems to be +11, -7, +5, -2, +6. Following this pattern, the next number in the sequence would be +3 from the previous number, which would be 21.
9
1
(plus) + 4 (minus) - 3
13 20 12
Pattern: +7,-4,+8,-3,+9,-2... Pattern continuation: +10,-1,+11,*0,+12,+1 17+10=27
The sequence appears to be alternating between addition and subtraction operations. Starting with 7, we subtract 6 to get 1, then add 4 to get 5, subtract 8 to get -3, and then add 10 to get 7. Following this pattern, the next operation would be subtraction, so we subtract 12 from 7 to get -5. Therefore, the number that best completes the sequence is -5.
The letter is L and the number is 12.
23, 22, 44, 45. The pattern is minus 2, minus 1, times 2, plus 1, repeat.
2 6 3 8 6 12 2 6 3 8 6 12
7 The difference between each successive pair is being halved. 100 -> 52 = 48 52 -> 28 = 24 28 -> 16 = 12 16 -> 10 = 6 Thus the next number is 10 - 6/2 = 7