The values of A , B and C are 5p, 9p and 14p respectively.
From the first grid given ;
- Sum of two successive values in the upper row gives the corresponding value in the row below.
For the second grid :
A = p + 4p
A = 5p
B = 4p + 5p
B = 9p
C = A + B
C = 5p + 9p
C = 14p
The values of A , B and C are 5p, 9p and 14p respectively.