According to the first pattern of numbers find the value of D in the second similar pattern.
15, 31, 11, 23, 5, 11
21, 43, A, B, C, D, E
1
19
2
21
3
23
4
15
According to the first pattern of numbers find the value of D in the second similar pattern.
15, 31, 11, 23, 5, 11
21, 43, A, B, C, D, E