In seven term sequence, 5,p,q,13,r,40,x, each term after the third term is the sum of the preceding three terms. The value of x is
Answer Choices
A. 21
B. 61
C. 67
D. 74
E. 80
In seven term sequence, 5,p,q,13,r,40,x, each term after the third term is the sum of the preceding three terms. The value of x is
Answer Choices
A. 21
B. 61
C. 67
D. 74
E. 80